Browse every episode and jump into details.
Episode 1: City of HeroesOct 9, 2013 · 42m
Diggle and Felicity travel to the island of Lian Yu in search of Oliver, who left Starling City after the devastation of The Undertaking and his failure to avert it. Convinced to return home, Oliver finds that things are in much worse shape than he imagined – Isabel Rochev is preparing a hostile takeover of Queen Consolidated, Thea refuses to visit Moira in jail, Roy is trying to fill the void left by the Arrow's absence, and Laurel is working with the District Attorney's office to take down the vigilante. Meanwhile, flashbacks to the island show Oliver's mentors Slade, Shado and Oliver in a desperate situation.
Episode 2: IdentityOct 16, 2013 · 42m
Thieves hijack medical supplies sent to Glades Memorial. Oliver gets into a heated battle with China White and her new partner, the Bronze Tiger, over the supplies. Meanwhile, Laurel makes plans to catch the Arrow; and Thea give Roy an ultimatum.
Episode 3: Broken DollsOct 23, 2013 · 42m
When a dangerous criminal from Lance's past escapes from prison, Felicity offers herself up as bait so Arrow, Diggle and Lance can capture him...but plans go awry.
Episode 4: CrucibleOct 30, 2013 · 42m
Oliver discovers a man who goes by the name “The Mayor” is bringing illegal guns in to The Glades, so Oliver sponsors a “Cash for Guns” event to help clean up the city. Unfortunately, The Mayor crashes the event with his gang and seriously injures Sin. The Canary is furious when she learns her friend is in the hospital and sets out for revenge. Meanwhile, Felicity stuns Oliver with a bit of information about the Canary, Donner asks Laurel to dinner, and Diggle reconnects with an old friend.
Episode 5: League of AssassinsNov 6, 2013 · 42m
Oliver puts Sara Lance up at the manor and soon discovers that she doesn't want to contact her family... both because she would put them in danger, and because she become a killer since the last time they saw her. Meanwhile, the League of Assassins send men to bring Sara back, alive or dead. And Oliver discovers that Laurel will be sitting second chair for his mother's trial.
Episode 6: Keep Your Enemies CloserNov 13, 2013 · 42m
A.R.G.U.S. abducts Diggle and asks him to help recover Lyla from a Russian prison. Oliver and Felicity insist on going along to help and Isabel tags along. Meanwhile, Jean Loring advises Thea that her dating Roy is hurting Moira's chance of getting an acquittal.
Episode 7: State v. QueenNov 20, 2013 · 42m
The Count has a new scheme to turn Starling City's residents into clients by addicting them to a new drug and then selling them Vertigo to cure it. among those stricken are Diggle and DA Donner, who collapses in the middle of presenting his case against Moira.
Episode 8: The ScientistDec 4, 2013 · 42m
When a superhumanly strong thief robs a Queen Consolidated warehouse, Central City police scientist Barry Allen comes to Starling City to investigate the case. However, despite his close working relationship with Felicity, Oliver suspects that there's more to the young scientist than meets the eye. Meanwhile, Sin asks Roy to help investigate the disappearance of a friend. In the past, Oliver, Shado, and Sara try to get Slade to the submarine so they can use the serum to save his life.
Episode 9: Three GhostsDec 11, 2013 · 42m
After covering from a near-fatal drug overdose, Oliver begins hallucinating people from his past. Believing he's a liability, Oliver gives the information he has on Cyrus Gold to Quentin... which results in the deaths of several police officers. Meanwhile, Brother Blood captures Roy and uses him as a test subject for his new serum. In the past on the island, Ivo gives Oliver an impossible choice to make.
Episode 10: Blast RadiusJan 15, 2014 · 42m
A bomber nicknamed Shrapnel has set his sights on Sebastian Blood, and Oliver dons his mask to protect his newfound ally. Meanwhile, Laurel investigates Sebastian's aunt who is locked up in a mental institution, and Thea learns about Roy's newfound superstrength.
Episode 11: Blind SpotJan 22, 2014 · 42m
When her father won't believe her accusations against Sebastian, Laurel turns to the Arrow for help. Oliver has his own doubts about Laurel, particularly when she is arrested on a charge of drug possession. Meanwhile, Roy sets out to test his new abilities but goes berserk, putting a man in the hospital.
Episode 12: TremorsJan 29, 2014 · 41m
While the Arrow trains Roy how to control his anger--and his super-strength--Bronze Tiger steals a prototype of Malcolm's earthquake machine to sell to an arms dealer. Meanwhile, Laurel discovers that she's being disbarred and goes out of control, and Walter has an offer for Moira. On the island, Oliver wonders whether to tell Slade the truth about how Shado died.
Episode 13: Heir to the DemonFeb 5, 2014 · 42m
As Laurel continues to unravel, Oliver and Lance try to convince Sara to stay in Starling City and finally reunite with Laurel and Dinah. However, Sara’s fellow League of Assassins member, Nyssa, comes to bring Sara back to the fold, but when Sara refuses, Nyssa kidnaps Dinah. Realizing she’s putting her family in danger by staying in town, Sara considers re-joining the league.
Episode 14: Time of DeathFeb 26, 2014 · 42m
A master hacker dubbed Clock King coordinates a series of raids on banks in Starling City, and his skills prove a match for Felicity. Meanwhile, Laurel's grudge with Sara continues and on the island, a pilot crashes his plane there and Sara tends to the dying man.
Episode 15: The PromiseMar 5, 2014 · 42m
In the present, Slade visits Oliver and makes his intentions clear. Five years earlier, Slade, Sara, and Oliver launch their assault on the Amazo, but things go wrong when Slade learns that Oliver was responsible for Shado's death.
Episode 16: Suicide SquadMar 19, 2014 · 42m
While Oliver deals with the pressure of Slade's threats against Oliver and his loved ones, Amanda Waller with A.R.G.U.S. recruits Diggle for a black ops mission. Diggle is happy to learn that he'll be working with his ex-wife Lyla... but not so thrilled that three convicts will be going on the mission with them.
Episode 17: Birds of PreyMar 26, 2014 · 42m
The Huntress returns and takes hostages at the courthouse when her father is arrested. Laurel is among those taken, which prompts her sister, the Canary, to battle the Huntress in an epic confrontation. Meanwhile, Roy tries to keep Thea safe, but he doesn't like the way he is forced to do it.
Episode 18: DeathstrokeApr 2, 2014 · 42m
Sara and Roy become prisoners at the Slade and the only one who is able to save them is Oliver Queen.
Episode 19: The Man Under the HoodApr 16, 2014 · 42m
When Oliver and his team destroy Slade's centrifuge, he attacks them as Deathstroke to get what he needs to find a replacement. Meanwhile, Laurel ponders what to do with Slade's information, and Oliver tries to convince Thea to help him protect their finances from Isabel.
Episode 20: Seeing RedApr 23, 2014 · 42m
The Mirakuru sends Roy into an uncontrollable rage and he unleashes on the city. Oliver realizes the Mirakuru has taken over Roy completely and must figure out a way to stop him.
Episode 21: City of BloodApr 30, 2014 · 42m
After the death of someone close to him, Oliver decides to give himself up to Slade rather than risk further bloodshed on his friends and family. Meanwhile, Laurel renews her investigation into Sebastian Blood, and Slade makes his final plans to unleash his Mirakuru-enhanced army on Starling City.
Episode 22: Streets of FireMay 7, 2014 · 42m
Oliver rallies his team as Slade's soldiers attack the city. Felicity gets a call from S.T.A.R. Labs with game-changing news and Thea comes face-to-face with her father.
Episode 23: UnthinkableMay 14, 2014 · 43m
As Oliver's face off with Slade escalates, his resolve to the no-kill rule is tested. Especially as Slade targets the woman Oliver loves.