Arrow: Season 2

Following the Glades' destruction and Tommy Merlyn's death, Oliver Queen returns to Lian Yu alone as penance for failing his city and Tommy. Laurel Lance is revealed to be working for the District Attorney. Felicity Smoak and John Diggle arrive and convince Oliver to return, informing him that his mother, Moira, is awaiting trial while Queen Consolidated is under the threat of takeover and dissolution by Isabel Rochev. Oliver learns a group of vigilantes, dressed like "The Hood", are killing oth

Roy fails to stop a truck robbery committed by Chien Na Wei. When Oliver attempts to convince Roy to stop being a vigilante, Oliver learns that the hospital in the Glades is having its medicine stolen. Oliver sets a trap for Chien, who escapes after having Ben Turner, a henchman with claws, fight him; the police arrive and the two escape. Diggle is revealed to have ended his relationship with Carly. Oliver decides to work with Sebastian Blood, an alderman for the Glades, to bring awareness and h

Oliver assigns Roy to track a woman who inadvertently tries to be a vigilante and helps him escape the police, which he manages through her connection to a woman named Cindy. Quentin discovers that the serial killer Barton Mathis, whom he arrested years earlier, escaped from prison during the earthquake and is on the killing spree again. Believing the vigilante's claim to have changed, Quentin enlists his help. The team discovers the link between all of the victims. Oliver learns that Mathis has

Felicity realizes that the female vigilante has been following Laurel, not Oliver. Oliver manages to ambush her and discovers that she is Sara, Laurel's sister, who was believed to have drowned. Meanwhile, weapon shipments keep being intercepted by a gang leader calling himself "The Mayor", who assaults a gun rally hosted by Oliver and Blood. Cindy is shot in the process; but Roy saves her. Felicity manages to identify the Mayor as Xavier Reed and tracks him down. Oliver recruits Sara to assist

Sara and Oliver are attacked at by a man dressed like Malcolm Merlyn. Sara reveals that the man, Al-Owal, is a member of the League of Assassins, which Malcolm is revealed to have been a member of, and is targeting her for leaving. Al-Owal threatens to kill her family. Oliver manages to protect Laurel, but Quentin refuses to heed Felicity's warning. Sara reveals herself to him and seeks refuge in a clock tower. They seek Oliver's help to stop another attack, with Sara killing Al-Owal and sending

After A.R.G.U.S. agent Lyla Michaels, revealed to be Diggle's former wife, goes missing, Oliver charters a trip to Russia to help Diggle find her when they learn that she was following a lead on Floyd Lawton's whereabouts. Isabel Rochev joins the flight, believing that Oliver is trying to meet with the subdivision of Queen Consolidated behind her back. Once there, Oliver and Diggle learn that Lyla is being held in a gulag. They enlist the help of a Russian contact Oliver first met in Amazo. Foll

It is revealed that The Count escaped from prison, where he was transferred after recovering from his psychosis, during the earthquake. Afterwards, The Count begins poisoning civilians with the Vertigo drug; Diggle and the Assistant District Attorney are among the infected. The Count reveals in a broadcast that the cure to the sickness is to take Vertigo. In the court, Laurel uses an affair between Moira and Malcolm to cast doubts on Moira's defense. Felicity is captured by The Count. In order t

When a masked thief with superhuman strength steals a centrifuge from Queen Consolidated, Central City CSI Barry Allen arrives to help the investigation. Later, he reveals that he is searching for super-powered beings in the hope that he will find the murderer of his mother, and exonerate his father for the accusation. Oliver realizes that the thief was enhanced using the same serum that Ivo was searching for. Roy starts to help Cindy find her missing friend, who was a failed subject of Blood's

Barry manages to save Oliver's life. Barry and Felicity are able to identify the thief as Cyrus Gold and locate him. While continuing to investigate the death of Cindy's friend Max, Roy is captured by Cyrus and brought before Blood, who injects him with the Mirakuru, which kills Roy. Oliver arrives and kills Cyrus, simultaneously destroying the centrifuge and the remaining serum. Oliver revives Roy, but worries that the serum may affect him negatively. Slade is revealed to be alive in the presen

Oliver continues his search for the man in the skull mask while Felicity travels to Central City to visit Barry, who is in a coma due to being hit by the lightning. Serial bomber Mark Scheffer, who goes by the name "Shrapnel", begins setting off bombs across Starling City as an anti-government movement. Blood begins his campaign for mayor and decides to organize a Unity Rally for the city. Scheffer targets the rally, but Oliver is able to stop Scheffer, who is arrested; and the bombs are disarme

Blood visits his mother and kills her after learning that she told Laurel the truth. Oliver continues his search for the man in the skull mask and receives help from Laurel, who suspects that it is Blood. Fearing that he will be discovered, Blood has Laurel arrested for drug possession by his disciple, Officer Daily. Afterwards, he has her kidnapped to lure Arrow out. The latter comes to rescue her; but during the fight, Laurel kills the masked man, who is revealed to be Daily, unknowingly throw

Ben Turner escapes from prison with assistance from H.I.V.E. associate Milo Armitage, who also pays him to steal a prototype of Malcolm's earthquake device. Oliver tells his teammates that Slade got angry when he found out how Shado died, as Slade was in love with her, and attacked him, which ended with Oliver putting an arrow in his eye. Arrow tracks down the device and is forced to reveal his identity to Roy in order to get his help in destroying the device. Meanwhile, Laurel learns that she m

Nyssa al Ghul, the daughter of Ra's and a member of the League, arrives in Starling City to convince Sara to return to Nanda Parbat with her. It is revealed that the two have a romantic history. Sara refuses, so Nyssa kidnaps her mother and threatens to kill her if Sara does not agree to return. Instead, Sara drinks snake venom. Arrow arrives with an antidote and Nyssa releases Sara from her obligations to the League. Meanwhile, as Moira begins her political campaign, Felicity discovers that The

William Tockman orchestrates a heist of an electronic device that will allow him to access any bank vault. Oliver and Sara start working together to stop him, foiling one of his robberies. In response, Tockman uses the device to hack into the computer servers at Oliver's hideout and overload them so they explode. Felicity, feeling left out with Sara now part of the team, attempts to bait Tockman into coming after one last heist. Oliver, Sara and Diggle arrive in time to protect Felicity, but she

Oliver, Moira and Thea give Slade, who has funded Moira's campaign, a tour of the house. Sara and the rest of the team are notified and arrive to assist Oliver, forcing Slade to leave without engaging. Oliver deduces that Slade is the one controlling the man in the skull mask, and is attempting to create more Mirakuru. Slade informs Oliver that he is there to follow through with a promise he made to Oliver on the island. Later, it is revealed that Slade used the tour to plant cameras throughout

In a flashback to years prior in Afghanistan, Diggle and Lyla lead a group of Afghan villagers when a wanted man, Gholem Qadir, is identified among the group. During an ambush by the rebels, Diggle saves Qadir's life. In the present, Diggle and Lyla are called upon by Waller to lead her "Task Force X", also known as the "Suicide Squad", which consists of Floyd Lawton, Ben Turner and Mark Scheffer being used as expendable assets. The Squad is sent after Qadir, who has developed a deadly nerve age

Oliver and Sara assist a police raid, and in the process help capture Frank Bertinelli. Oliver quickly realizes that Helena will return to kill Frank once she hears the news. Laurel is asked to return to the District Attorney's office to try Frank's case. Helena shows up at the courthouse and takes hostages in exchange for Frank. Sara goes to the courthouse to rescue Laurel, but Helena overpowers her and demands that Oliver deliver Frank in exchange for Laurel. Oliver complies; but Frank is kill

Slade kidnaps Thea. Oliver gives temporary CEO status to Isabel in his absence and later reconciles with Moira. Isabel uses her temporary power to convince the board of directors to make her position permanent, thus allowing her company to take full control of Queen Consolidated. When confronted, Isabel reveals that she has been working with Slade the entire time, and tells Oliver where Thea is being held. Oliver arrives; but Thea has already been freed—her kidnapping was a diversion from Slade'

Oliver's team destroys Isabel's lab so that Slade cannot use it to mass-produce the Mirakuru. In response, Slade steals an electronic Skeleton Key from Oliver's hideout. He uses it to steal a bio-transfuser from a S.T.A.R. Labs facility that Caitlin Snow and Cisco Ramon work at that will allow him to transfer the Mirakuru-infused blood to the freed convicts. Oliver tracks Slade and discovers that he has kidnapped Roy and is using him to transfuse the blood. Oliver rescues Roy, and Isabel, who is

Roy goes on a rampage, overwhelmed by the Mirakuru and no longer thinking for himself. During a fight, Oliver's leg is significantly injured and Roy escapes. Sara decides that Roy must be killed; but Oliver disagrees. Roy comes to Verdant and Oliver uses the opportunity to inject Roy with pit viper venom to knock him unconscious and keep him sedated until a cure can be found. Sara decides that she is not good enough for Oliver and leaves the city to find a friend. Meanwhile, Thea continues to di

When Oliver doesn't show up at Moira's funeral, Diggle and Felicity enlist the help of Amanda to track him down. They find him in a secret hideout, where he reveals to them he intends to surrender to Slade and face his fate in order to protect everyone else. Meanwhile, Isabel returns and shuts down Verdant, forcing Thea to make a decision to leave Starling City, and Sebastian is sworn in as Mayor. Diggle and Felicity inform Laurel of Oliver's intention to surrender to Slade. Laurel confronts him

As Slade's men continue to terrorize the city, Felicity and Diggle outwit Isabel and escape. S.T.A.R. Labs makes a cure for the Mirakuru, but Slade sends men to acquire it before Oliver. Finally trusting Quentin, the police force pledges to help the Arrow stop Slade's men and Quentin is reinstated to lead them. Slade reveals to Blood that he plans to destroy the entire city, people and all, in his quest for vengeance against Oliver. As a result, Blood steals the cure and gives it to Oliver in re

In flashbacks, the Amazo sinks as Oliver planned. He presumably kills Slade while Sara disappears overboard. Later, Oliver awakens in Hong Kong, where he meets Waller. In the present, the cure works on Roy. Sara arrives with Nyssa and the League to provide backup for Oliver, who gives Roy a red mask. They confront Slade and Isabel at Queen Consolidated. Nyssa kills Isabel, and tells Oliver he needs to kill Slade, who escapes. Meanwhile, Diggle and Lyla free the Suicide Squad members and enlist t