Watch "Arrow: Season 8" on Netflix United Kingdom

Presumed dead for five years before being discovered on a remote Pacific island, billionaire playboy Oliver Queen returns home a changed man.

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Oliver sets his sights on taking down a criminal with ties to the Chinese triad: Martin Somers, who's being prosecuted by Laurel.

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When a gunman kills one of Oliver's targets, he enlists Det. Lance's help. Meanwhile, Laurel and Tommy find themselves caught in an awkward situation.

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While looking into a murder case, Oliver realizes that one of the targets on his list has framed an innocent man for the crime.

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When Oliver is arrested for murder, he insists that Laurel represent him in court. She takes the case, putting her at odds with her father.

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A band of bank robbers dubbed the Royal Flush Gang seriously wounds an off-duty police officer during a heist, forcing Oliver to rethink his mission.

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The Huntress arrives in Starling City and puts Oliver under her spell. Meanwhile, adverse events blindside Tommy, who turns to Laurel for support.

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Oliver trains Helena to be his ally. Later, her pursuit of vengeance leads Helena to kill the leader of the triad.

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Determined to make up for lost time and restore a sense of normality to the Queen household, Oliver throws a family Christmas party.

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After the Dark Archer defeats Oliver, he loses confidence and takes a break from being Arrow -- until Laurel needs help probing a firefighter's death.

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Oliver suspects that Diggle's mentor is responsible for some armored truck robberies. Meanwhile, Thea believes Moira and Malcolm are having an affair.

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Thea finds herself in legal trouble after getting caught with a drug called Vertigo. Meanwhile, Felicity gives Oliver disturbing news about Moira.

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A nasty crook released from prison plans to reclaim his place as leader of Starling City's underworld but first must take down his biggest foe: Arrow.

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When Oliver is shot, he turns to Felicity for help. While hovering between life and death, he flashes back to a daring escape attempt on the island.

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Oliver asks Det. McKenna Hall on a date. Meanwhile, a jewel thief named Dodger hits Starling City and targets someone close to Oliver.

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Oliver and Diggle learn that Deadshot is still alive and that Malcolm is the next target. Meanwhile, Oliver urges Tommy to reconcile with his father.

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The Huntress returns to town and threatens to destroy everything and everyone Oliver cares about. Later, Steve Aoki headlines the nightclub opening.

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An angry resident of the Glades embarks on a kidnapping and killing spree to punish those he believes have wronged the residents of his neighborhood.

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When a young woman meets a violent death after partying at Verdant, Det. Lance uncovers incriminating evidence against Tommy.

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When Deadshot returns to Starling City after taking down a U.S. ambassador and six others abroad, a sting operation is launched to capture him alive.

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As Oliver focuses on crossing another name off the list, Felicity finds a transaction on a shady accountant's laptop that may help him locate Walter.

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With the Undertaking just days away, Malcolm dons his black hood to conclude business with seismologist Brion Markov and his team.

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In the season finale, Oliver and Diggle try to stop the Dark Archer from unleashing his vengeance on the Glades. Meanwhile, Thea races to find Roy.

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With Starling City and Queen Consolidated deteriorating fast, Diggle and Felicity travel to Lian Yu Island to convince Oliver to return as the Arrow.

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Oliver learns that medicine is being hijacked on the way to Glades Memorial Hospital, leading to a showdown with Bronze Tiger and China White.

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Felicity offers herself as bait so Arrow, Diggle and Lance can catch a criminal who broke out of prison and is torturing and murdering women.

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Oliver learns that a man known as "The Mayor" is bringing illegal guns into the Glades, so he sponsors a cash for guns event to clean up the city.

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Oliver tries to get the Canary to reveal her background. Meanwhile, the Assistant District Attorney offers Moira a life-or-death deal.

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Diggle learns that Lyla is missing after following a lead in Moscow. Moira's lawyer tells Thea that dating Roy is hurting her mother's case.

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A mysterious illness sweeps the city, infecting hundreds of people -- including Diggle. Moira goes on trial for her participation in the Undertaking.

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A seemingly impossible robbery at Queen Consolidated's Applied Sciences Division brings Central City police scientist Barry Allen to town.

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Oliver is visited by ghosts from the past. Meanwhile, Barry continues to help Felicity, and their connection grows stronger.

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Oliver must tackle a new threat when bombs start to go off in Starling City, and Thea witnesses Roy's super-strength in action.

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Arrow teams up with Laurel to find the Man in the Mask, and when Sin tests Roy's superstrength, the results are nearly fatal.

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Arrow offers to teach Roy to control his superstrength, but Roy proves to be a rebellious student. Meanwhile, the Bronze Tiger becomes a threat again.

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Sara is forced to make an important decision when her past with the League of Assassins comes back to haunt her -- and her family.

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The team goes after the Clock King, who has tech that can open any bank vault in Starling City, while Sara ruffles Queen's feathers.

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Back on the island where Oliver spent years shipwrecked, his plan with Slade and Sara to take over a freighter from Ivo takes a deadly turn.

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With Slade back and vowing revenge on Oliver's loved ones, Oliver prepares for battle; Diggle is recruited by A.R.G.U.S. to stop a warlord.

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When Frank Bertinelli is arrested and Laurel is picked to try the case, Bertinelli's daughter, the Huntress, returns with her own take on justice.

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Slade makes his move against Oliver, with enormous repercussions. Meanwhile, Isabel attempts to take Queen Consolidated away from Oliver.

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After an epic battle with Slade, one member of Team Arrow is sent to the hospital, and Oliver is forced to make a tough decision involving Thea.

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When the team realizes that the Mirakuru has taken over Roy completely, rendering him deadly and out of control, they're forced to take action.

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To stop Slade, Oliver may have to make the ultimate sacrifice, but Diggle and Felicity go to extreme measures to stop him.

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Oliver and his team rally to stop Slade's soldiers as they attack Starling City. Meanwhile, Malcolm Merlyn returns.

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Oliver's no-kill rule is put to the ultimate test when Slade kidnaps someone close to Oliver's heart. Meanwhile, Diggle takes on Amanda Waller.

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In the wake of Slade's downfall, the peaceful city celebrates, but Werner Zytle has a deadly plot up his sleeve, and a homicidal archer targets Sara.

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Oliver pursues a murderous archer; Laurel tries to take justice for Sara's death into her own hands; Thea makes progress in her training with Merlyn.

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Oliver trails Thea to an island, hoping to bring her back to Starling City; Oliver helps Diggle find a missing ARGUS agent; Laurel tries to toughen up.

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When Oliver sends Roy out to tail Nyssa and learn more about Sara's killer, Thea gets kidnapped, and Oliver makes a dangerous enemy.

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Felicity investigates a cyberattack on Starling City and discovers that she herself created the virus; Roy's nightmares tell him that he killed Sara.

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When bodies appear at the gym, Oliver helps prove Ted Grant's innocence and catch the killer; Roy faces the aftermath of the Mirakuru virus.

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Oliver investigates a menace named Cupid, who is romantically obsessed with him; Oliver feels pangs of jealousy over Ray's rapport with Felicity.

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A boomerang-wielding murderer defies Oliver's team and ARGUS; Digger lays a trap for Lyla with the intent to kill her and whomever stands in his way.

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The League of Assassins issues a terrifying threat; the DNA results of Sara's murder investigation shock Felicity; Oliver faces a formidable foe.

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With the Arrow gone, Diggle and Roy strive to protect Starling City as a new crime lord plots a power grab; Merlyn finds evidence of Oliver's demise.

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Maseo and Tatsu must go to extremes to protect the healing Oliver; Brick kidnaps a city official and tries to banish the police force from the Glades.

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Oliver finds a mentor to help him bring down Ra's; Capt. Lance advises Roy and Laurel on fighting Brick's men; Merlyn discovers who killed his wife.

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When Laurel tries to capture Zytle after his prison break, he doses her with his poison, Vertigo; DJ Chase tries to murder League trainee Thea.

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As Oliver starts training Thea on the island of Lian Yu, Slade captures and imprisons them, and Thea is forced to face a painful truth.

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Oliver sets out to rescue Merlyn to keep Thea from disconnecting with her humanity once she realizes that she has sealed her father's dire fate.

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With a plot in mind, Ra's pushes Oliver to take over the League, revealing the secret of his longevity; Capt. Lance withdraws his support of Arrow.

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A honeymoon for Diggle and Lyla is cut short when they are recruited for a dangerous rescue mission; an Arrow imposter murders the mayor.

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Arrow's team is hunted down for the mayor's murder; a wound threatens Ray's life; Ra's kidnaps Captain Lance and exposes Arrow's identity.

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When Roy is arrested, Oliver's crew plots to spring him from prison and protect Arrow's identity; Ray needs Oliver's help to bring down Jake Simmons.

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When Oliver tries to bring Thea back from the brink of death, he is forced to renounce his old life and step into a new role with the League.

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Oliver takes on a new identity and a daunting test of allegiance; Ra's recalls dueling his best friend to become the leader of the League.

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Diggle and Laurel patrol Starling City; Oliver learns who provided Ra's with the Omega virus and confesses the truth about his place in the League.

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Oliver and his team race to stop Ra's from releasing the virus and destroying Starling City, but as the dust settles, Oliver makes a fateful choice.

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When Damien Darhk attacks newly renamed Star City with a gang of assassins, Oliver rebuffs an old ally and returns as the Green Arrow to fight back.

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Green Arrow and Speedy track an assassin who targets a family friend. Meanwhile, Thea's bloodlust escalates, and Oliver decides to run for mayor.

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While Thea and Laurel try to revive Sara with the Lazarus Pit, Oliver and Diggle must make peace and team up in order to confront a new assassin.

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While Oliver sets a trap to catch a group of crooked cops, Laurel takes Quentin to see Sara, who is feral and chained up in Laurel's basement.

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When Sara turns savage, Oliver calls in John Constantine to restore her soul to her body. Meanwhile, Diggle learns the truth about his brother.

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Learning that the explosion miniaturized Ray, the team launches a mission to rescue him from Damien Darhk and return him to normal size.

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Thea discovers a potential but risky cure for her bloodlust, and the team asks Ray for help when they learn that Andy is alive but working for Darhk.

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Oliver and Barry use ingenuity and a little time travel to protect Carter Hall and Kendra Saunders from immortal assassin Vandal Savage.

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After Oliver exposes him as the force behind H.I.V.E., Darhk kidnaps Diggle, Thea and Felicity, prompting Oliver to take a desperate gamble.

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Desperate to get revenge for Felicity's near-fatal wounding, Oliver uses freelance anarchist Lonnie Machin to go on the hunt for Damien Darhk.

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While Felicity adapts to her new role in Team Arrow, Diggle and Andy help Oliver track sinister Shadowspire operatives trying to infiltrate A.R.G.U.S.

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Oliver and Thea get a surprise when they chase a burglar being controlled by a villain named the Calculator, who has a dire plan for Star City.

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Hoping to obtain a cure for Thea's bloodlust, Oliver pits Nyssa and Malcolm against each other in a battle for control of the League of Assassins.

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Darhk dispatches mercenaries to blow up key targets in Star City, including the venue where mayoral candidate Oliver plans to debate his opponent.

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Vixen uses her mystical powers to help Team Arrow trigger a showdown with Darhk. Meanwhile, the truth drives a wedge between Oliver and Felicity.

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When Cupid returns and begins attacking newlyweds, recently estranged Oliver and Felicity lay a trap for her by going through with their wedding.

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Desperate to get her hands on Felicity's microchip implant, Brie Larvan escapes prison and attacks Palmer Tech, using robotic bees to fend off Oliver.

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Oliver and Diggle discover that Malcolm has a plan to spring Darhk from prison. Meanwhile, Laurel gets a tempting offer.

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When the Black Canary strikes again, Oliver and Quentin spar over Laurel's fate. Meanwhile, a plot targets Mayor Adams, and Oliver vows to kill Darhk.

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Felicity and Oliver seek out a shaman who reveals the source of Darhk's magical powers, and the team uncovers his sinister master plan.

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As Darhk launches his cataclysmic plot, Oliver and the team turn to Felicity's father to thwart it. But H.I.V.E. also has him in their sights.

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Darhk renews his efforts to carry out his doomsday plan, and Oliver and Diggle infiltrate a secret H.I.V.E. facility in search of Thea.

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While the team scrambles desperately to avert a global cataclysm, Oliver draws on a surprising power to confront Darhk once and for all.

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While Felicity pushes to bring in new recruits and Oliver grapples with letting go of the past, brutal crook Tobias Church begins his ascent to power.

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Green Arrow tries to train new recruits but must do some soul-searching first. Meanwhile, Church makes a move to ensure his domination of Star City.

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Insolent Wild Dog deserts the new team to take on a drug kingpin by himself, forcing Green Arrow into a dangerous showdown.

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With Oliver out on a mission to free Diggle, Church mounts an attack against Star City. Can the new team meet the threat without their leader?

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While he faces an assassination threat as mayor, Oliver turns to old ally Human Target to help rescue Wild Dog from Church's clutches.

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Believing that Prometheus's lethal rampage is meant to send him a message, Green Arrow tries to unravel the mystery while keeping his team from harm.

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Green Arrow and the team wrangle over a deadly new vigilante prowling Star City's streets, and Thea stands up for Quentin after he reveals a secret.

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When aliens invade, team Green Arrow joins forces with Flash, Supergirl and the time-traveling Legends of Tomorrow to face the intergalactic threat.

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After a vicious attack reveals that Prometheus knows all their secrets, the team faces a shocking betrayal from one of their own.

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A surprise doppelganger sets Green Arrow and Felicity at odds, and DA Chase tangles with military brass to save Diggle from a virtual death sentence.

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Green Arrow's search for a new Black Canary turns up a promising but loose-cannon candidate. Felicity tries to hack into the NSA to liberate Diggle.

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A grave new threat takes the team to Russia, where Oliver runs afoul of an old Bratva comrade. In Star City, Rene faces a test of leadership.

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A brutal attack on city hall forces Oliver to seek justice as Mayor Queen, not Green Arrow. Rene relives his journey from family man to masked hero.

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After a jailbreak, Green Arrow's hunt to apprehend vengeful villains Liza Warner, Cupid and China White faces shocking interference from the ACU.

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After being targeted by Vigilante, Oliver fights impeachment proceedings at city hall while Diggle and the team angle to take out Vigilante for good.

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Green Arrow closes in on the true identity of Prometheus, who takes a hostage close to Oliver's heart. Felicity faces an ultimatum from Helix.

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Now unmasked, Prometheus sinks his claws into Oliver to exact revenge and elicit a confession about Green Arrow's dark and violent past.

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Dissension rends Team Green Arrow when Oliver calls on his old -- and volatile -- Bratva allies to eliminate Prometheus once and for all.

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With all of Star City on the hunt for Adrian Chase, Felicity defies Oliver and turns to Helix for help -- but their assistance comes at a steep price.

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A mysterious explosion disables Felicity and traps Oliver and her alone in the bunker. Diggle and Lyla face issues in their marriage.

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The hunt for Adrian Chase leads Team Arrow to a confrontation with Sampson. A macabre delivery at city hall sends Oliver a disturbing message.

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A friendly surprise catches Oliver off guard, and the team scrambles when they discover that Adrian Chase has begun hunting them down, one by one.

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Desperate to save his team and family, Oliver returns to the island of Lian Yu and recruits an old foe for a climactic showdown with Adrian Chase.

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While Quentin struggles to make peace with his actions back on Lian Yu, Black Siren begins a bombing campaign against the SCPD and Team Green Arrow.

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A dogged FBI agent targets Oliver in the wake of an incriminating leaked photo. Anatoly makes a daring strike. Diggle faces a difficult truth.

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Diggle steps into his new role but faces a crisis of leadership when the team races to thwart a poison gas attack by Onyx and her crew.

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As a series of perplexing murders unfolds across Star City, Felicity races to thwart an impending cataclysmic attack by Cayden James.

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With Oliver's help, Slade tracks his missing son but makes a terrible discovery. A distressing revelation spurs Dinah to hunt down a rogue sniper.

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Slade's quest to reunite with his son takes an ominous turn. Diggle's secret collides with the team's mission to take down a slippery drug dealer.

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Oliver's holiday plans are cut short when Watson arrests him, prompting Cayden James and Black Siren to unleash an attack at a Star City rock concert.

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Green Arrow joins Supergirl, the Flash and the Legends of Tomorrow to combat the Nazi invasion from Earth-X -- and an evil doppelgänger of himself.

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The team celebrates a long-expected wedding but discovers a traitor in their midst. Cayden James forces Oliver into a mission-impossible heist.

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A wedge driven between them, the team discovers that their bunker is compromised. A mob boss turns to Green Arrow for help against a common enemy.

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Oliver scrambles to secure Star City after Cayden James unleashes a deadly, high-tech siege. Dinah and the new team clash over a shifty new ally.

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While Cayden James hunts for a mole on his team, Felicity initiates a risky plan to neutralize the thermobaric bomb menacing Star City.

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His old team in disarray, Oliver faces an ultimatum from Cayden James. Meanwhile, Dinah's thirst for vengeance drives her to go rogue.

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While Star City faces financial ruin, former allies come to a violent crossroads over the fate of Black Siren. Meanwhile, Quentin harbors a secret.

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Learning that Roy Harper has been taken captive in Star City, Thea takes up her Speedy suit and rejoins Team Green Arrow for a daring rescue mission.

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A group of assassins on their trail, Nyssa, Thea and Team Green Arrow work to hack a cryptic map. Dinah and Curtis hunt for corrupt cops.

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Diaz moves to consolidate his control of Star City. Diggle confronts Oliver over his leadership of the team -- and comes to a pivotal crossroads.

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Pressures mounting on all sides, Oliver suffers troubling hallucinations that expose his deepest insecurities and send him down a dangerous path.

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As Diaz takes a meeting with far-reaching consequences for Star City, Felicity and Curtis work on taking Helix Dynamics to the next level.

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Oliver rolls the dice to turn Anatoly against Diaz. Rene returns to the fight as Dinah's team and Diggle join forces to take on the Quadrant.

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Oliver faces life in prison as his case plays out in court, but the trial takes an unexpected turn when an old friend makes a surprise appearance.

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Facing a coordinated all-out assault, the members of Team Green Arrow reunite to steal data that could break Diaz's iron grip on Star City.

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With Star City hanging in the balance, a new ally joins the fight alongside Team Green Arrow as Oliver drives Diaz to an explosive showdown.

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While Oliver fights to keep his cool in harsh new surroundings, Felicity comes under fire and a new vigilante posing as Green Arrow hits the streets.

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Team Green Arrow reassembles to track down the Longbow Hunters after a theft at A.R.G.U.S. Oliver makes a dicey bargain in Slabside.

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Oliver faces a formidable challenge behind bars, Felicity makes her priorities crystal clear, and Curtis creates a technical masterpiece.

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Under interrogation, Oliver reconsiders his legacy. While an arsonist burns the Glades, Dinah and Rene lock horns over the new Green Arrow.

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Locked in the brutal depths of Slabside, Oliver hatches an escape plan with an old foe. Curtis faces an identity crisis while going undercover.

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Over Oliver's objections, Laurel takes up his case. Felicity pushes an undercover op to the edge. Oliver takes a stand for a friend in Slabside.

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Putting his freedom in jeopardy, Oliver forces a showdown after Diaz infiltrates Slabside with a ruthless plan for revenge.

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After his release from Slabside, Oliver helps Rene and Dinah as they try to learn the identity of the new Green Arrow, who is suspected of murder.

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Oliver, Kara and Barry get some unexpected help in their search for answers in Gotham City. Meanwhile, Felicity makes an interdimensional breakthrough.

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Rene fights to help the new Green Arrow's mission, and Oliver, now working with the SCPD, finds an unexpected link to the mysterious vigilante.

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His father's legacy haunts Oliver's attempt to regain Star City's trust. John pressures Curtis into helping with the revived Ghost Initiative.

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While a documentary film crew dogs his steps, Oliver goes on the hunt for a mysterious masked figure who has begun targeting Star City's vigilantes.

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Dinah and her freshly deputized crew slip into a horror-movie scenario while chasing a creepy serial killer. William and Oliver clash over their future.

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Felicity aims to take out Diaz when Diggle sends the Ghost Initiative after Dante. Oliver steps in as Emiko searches for her mother's killer.

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Chafing under new rules, the members of Team Arrow -- now SCPD recruits -- go after a dealer putting chemical weapons on the streets of Star City.

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Decades in the future, William and Mia take their perilous quest to the Glades, where they make some disturbing -- and dangerous -- discoveries.

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While Team Arrow picks up Dante's trail at last, Laurel clashes with Dinah and Oliver discovers an alarming secret about Emiko's past.

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With her criminal history now out in the open, Laurel joins forces with an old acquaintance. Meanwhile, Dinah and Felicity do battle.

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After Archer falls into the hands of the Ninth Circle, Diggle calls in some big guns for help -- and must face his family's conflicted past.

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Trying to unravel a mystery, the SCPD interrogates Team Arrow after their off-the-books mission to thwart a bio-terrorism attack turns deadly.

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While Team Arrow races to rescue him from the rubble of a collapsed building, Oliver faces a moment of truth. Emiko has another surprise in store.

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Team Arrow races to thwart Emiko's bioterror attack while Oliver tries to liberate her from their family's cycle of violence. Oliver's debt comes due.

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