Arrow: Season 4

John Diggle, Thea Queen, and Laurel Lance continue fighting crime in Starling City, recently renamed 'Star City' in honor of Ray Palmer, who apparently died in an explosion. The city's leadership, including Quentin Lance, assemble to discuss a criminal group named the "Ghosts" who are terrorizing the city. Damien Darhk, revealed to be controlling the Ghosts, systematically begins assassinating the city's leadership, but fails to kill Quentin. Laurel and Thea convince Oliver Queen, who was trying

The Queen family friend Jessica Danforth decides to run for mayor. During her announcement, she is attacked by Lonnie Machin, an anarchist for hire working for Darhk. Oliver explains to his sister that her aggressiveness is a result of being in the Lazarus Pit. Diggle tells Laurel about H.I.V.E. The team successfully stops Machin, but Thea sets him on fire in the process. Later, Machin escapes police custody. Laurel decides to take Thea back to Nanda Parbat both to find a way to stop the aggress

Laurel and Thea arrive in Nanda Parbat and request Malcolm Merlyn to use the Lazarus Pit for Sara. He initially refuses and tells Thea that she needs to kill some people once in a while to suppress the lust. In order to appease her, he eventually agrees to revive Sara. When Sara returns feral, Nyssa al Ghul destroys the Lazarus Pit in retaliation, and Merlyn has her imprisoned. Meanwhile, an A.R.G.U.S. operative delivers Diggle information on a H.I.V.E. operative, Mina Fayad. Fayad meets with Da

Quentin has Green Arrow look into the death of two police officers and the team discovers they were killed by members of the Anti-Vigilante Task Force. Laurel brings Quentin to see Sara, who is chained up in the basement of Laurel's apartment. Felicity identifies Liza Warner as a suspect and, while searching for her, Oliver discovers Quentin meeting with Darhk and confronts Quentin, who reveals that Darhk threatened to kill Laurel. Darhk advises Quentin to kill Sara; but Laurel dissuades him. Gr

In flashbacks, Reiter dismisses Conklin's accusation of Oliver. Instead, he introduces them to a recent captive named John Constantine, who escapes and forces Oliver to help him locate a mystical object on the island. Afterwards, Constantine warns Oliver to be wary of Reiter's real plans and uses the object to cast a spell on him. In the present, Sara starts killing women and Green Arrow discovers she is alive. The team realizes that Sara is looking for Thea and plans to kill her. They capture S

As Oliver works on his campaign, Felicity continues searching for Ray with the help of Curtis. Ray is able to send a new message, letting Felicity know that he survived the explosion because his suit successfully shrank him down to a small size, that he is being held prisoner, and where to find the schematics to build a device to return him to his normal size. In a second message, Felicity discovers that Darhk is the one imprisoning Ray, hoping to get the technology from his suit. The team track

While Ray refuses to return to Palmer Tech, H.I.V.E. destroys money meant for the city bank. John gives Oliver information that H.I.V.E. murdered his brother Andy because he was a criminal rival. Darhk tells Quentin about his knowledge of Quentin's betrayal. The team heads to a lab, where they are attacked by Darhk's group and John discovers that Andy is still alive, working for H.I.V.E. John refuses to see Andy as anything more than a traitor, unworthy of saving. The team finds out that Darhk u

Malcolm orchestrates a meeting between Vandal Savage, Barry Allen, and Oliver. Savage demands they turn over Kendra Saunders and Carter Hall or he will destroy both Central City and Star City with the Staff of Horus. They devise a plan to deliver the pair as a ruse to get close enough to destroy the staff. The plan fails; Kendra and Carter are killed and Savage uses the staff to destroy everyone else in the city. Barry escapes and runs fast enough to go back in time to the point of the original

Oliver's campaign starts an initiative to clean up the Star City bay. Darhk sends a drone to the bay and begins shooting at the citizens helping, injuring several. In response, Oliver reveals Darhk to the media as the leader of H.I.V.E. and the Ghosts. In retaliation, Darhk crashes Oliver's campaign holiday party and kidnaps John, Felicity, and Thea. Oliver makes contact and agrees to exchange himself for them. Darhk tricks Oliver and attempts to kill them all in front of him. Malcolm, dressed a

While Felicity goes under multiple surgeries, Oliver and the team continue searching for Darhk. Oliver turns to Quentin for information on Darhk's location, while John interrogates his brother Andy. They track down Darhk's location, but find only several dead Ghost soldiers and an anarchy symbol, deducing that Machin is back and out for revenge against Darhk. Machin is caught and Oliver interrogates him before freeing him to go after Darhk, tracking him in the process. Andy reveals Darhk's famil

Felicity returns home from the hospital, trying to figure out her place on the team now that she is a paraplegic. An A.R.G.U.S. agent seeks out John and Lyla Michaels for assistance, but is kidnapped before he can tell the pair anything. The pair goes to Waller, who secretly gives her a portable hard drive that reveals the operative was taken by an organization known as "Shadowspire". John recognizes the name and recounts first meeting the war profiteering group in Afghanistan. With Andy's help,

The team goes after a burglar and Oliver and Thea manage to corner him. He escapes when Thea loses consciousness. Malcolm reveals to Oliver that since she has not taken a life, the bloodlust is killing her. Oliver finds out that the burglar is Roy Harper. They free Roy from the control of a man who goes by the name Calculator. Felicity tracks the Calculator through the web, who reveals he intends to shut down the entire city, killing everyone in the process. The team manages to stop the plan. Me

Oliver refuses Nyssa's offer; instead, he manages to convince Malcolm to relinquish control of the League to Nyssa in exchange for the Lotus. At the exchange, Malcolm double-crosses Nyssa and a war starts between the two assassin factions in Star City. Oliver convinces Malcolm to challenge Nyssa to a duel. Oliver uses ancient rules to trade places with Nyssa as her husband. Oliver defeats Malcolm but, instead of killing him, severs the hand wearing the Demon's Head ring and exchanges the ring fo

Malcolm joins Darhk, Ruvé, and the other leaders of H.I.V.E. and it is revealed that they are moving on to "Phase 5" of their plan. Darhk sends a group of mercenaries, known as the Demolition Team, to take out Quentin, whom Laurel saves. With Curtis' help, Felicity realizes that the Demolition Team is planning to destroy the building of the mayoral debate between Oliver and Ruvé, leaving her alive as a sympathetic survivor. Oliver and his team stop the mercenaries in time for Oliver to win the d

Darhk demands Oliver withdraw from the mayoral race in exchange for William. Oliver reveals the truth about William to the rest of the team while revealing his alter ego to Samantha. He asks a Detroit-based vigilante named Mari McCabe for help, as her powers are derived from magic. Mari tracks William's location; but they fail to rescue him. Oliver withdraws from the race while the team discovers the root of Darhk's powers and sets a plan to destroy his mystical idol. The plan works; Darhk is le

Carrie Cutter returns to Star City and begins targeting high profile couples. While the team works to track her whereabouts and prevent any more killings, Laurel works on Darhk's prosecution. After several failed attempts to find a suitable witness, Quentin testifies to his involvement. The team discovers that Carrie is targeting couples that have recently been married. In order to draw her out, Oliver convinces Felicity to stage a "secret" wedding with him to set themselves up as targets, inten

Brie Larvan orchestrates her release from prison and travels to Star City in search of the bio-mechanical chip that helps Felicity walk. Brie attacks Palmer Tech, holding the board hostage until Felicity turns herself over. Curtis tracks down Oliver's hideout, discovering his secret in the process, so that he can offer his help to the team to save Felicity, Donna, and Thea. Oliver is stung by one of Brie's robotic bees. Curtis realizes the sting actually implanted a bee within Oliver that is rep

Andy tells John that he was approached by Malcolm about a plan to break Darhk out of prison. Oliver and John foil H.I.V.E.'s plan, but it turns out to be a ruse designed to let Malcolm and his loyal assassins invade the bunker and steal Darhk's idol. Malcolm delivers the idol to Darhk, who finds out that it is incomplete. John reveals to Andy that he personally hid the missing piece in another location. Oliver becomes suspicious of Andy. Darhk and Amar orchestrate a prison riot and the team sets

As the team, including the rejoined Felicity, mourns Laurel's death and tries to determine their next move against Darhk, another woman posing as the Black Canary appears in Star City. She turns out to be Evelyn Sharp, the daughter of H.I.V.E. prisoners who were left behind after Oliver saved his team when they were previously kidnapped by Darhk. John, angry at being betrayed by Andy, goes after Ruvé, the new mayor; but Oliver intervenes. Ruvé issues arrest warrants for all vigilantes. Sharp goe

Darhk returns to H.I.V.E. and kills two of the board members before renewing his plans for "Genesis". Oliver and Felicity go to Hub City and meet an immortal shaman, Esrin Fortuna, who starts educating Oliver about dark magic. After a mystical ritual, Fortuna tells Oliver that the darkness inside him is too strong to channel the light. In Star City, John locates Andy, but is captured after a brief shootout. Andy places a tracking device on him, then allows John to escape so that Darhk and his te

Darhk begins taking control of the world's nuclear missiles. The team seeks out Noah to help disable Rubicon. Darhk sends Danny Brickwell and Amar to find and kill Noah, but Oliver and his team are able to rescue him. Noah agrees to help, but it requires a high-powered processor from Palmer Tech. Felicity learns she has been fired as CEO and is unable to get the processor, forcing the team to break in and steal it. H.I.V.E. locates the team when Noah hacks into Rubicon. As H.I.V.E. attacks, Feli

Darhk's power has grown exponentially and he attempts to reactivate "Rubicon" with the help of Felicity's former boyfriend, Cooper Seldon, and launch the remaining missiles. However, Noah, Felicity, and Curtis successfully shut down "Rubicon" for good. Meanwhile, Oliver and Diggle discover the underground town and track Thea's whereabouts. Malcolm uses a mind-controlling drug on her which makes her turn on Oliver, but Oliver manages to talk her back to reality. Just then, Machin takes over H.I.V

Darhk steals the laptop keeping him locked out of "Rubicon" and launches over 15,000 nuclear missiles, giving the team two hours to prevent worldwide annihilation. With Star City rioting, Oliver addresses everyone, inspiring hope in them to stay strong, while Felicity and Curtis divert the missile aimed at Star City. Oliver goes after Darhk, while Felicity, Merlyn, and Thea track down "Rubicon". Felicity convinces Cooper to stop helping Darhk, at the cost of his life. Curtis devises a means to s