Norman is encouraged by his mother to join a play and asked for help by Bradley. Also, Romero is under pressure to identify the murderer.
During Sandra Panitch's trial, Gus and Shawn investigate the murder she allegedly committed.
A deadly illness sweeps through Starling City. When Diggle is struck down, Oliver confirms that the source of the illness is a new version of Vertigo. Tracking down a lead, Felicity is soon captured by The Count, who has escaped prison. Meanwhile, Moira fights for her life in the courtroom against a death sentence, and Laurel is forced to prosecute her when DA Donner is stricken down by the same illness.moreless
Officer Lance asks the Arrow for help in stopping a serial killer who goes after women, and Felicity volunteers to help. However, when their trap fails, the killer captures Laurel. Meanwhile, DA Adam Donner seeks the death penalty for Moira, and Oliver recruits Roy to help him find the Canary.moreless
Rebecca, Doc and Hauser search for an unknown '63 who's returned more violent than before.
When child killer Kit Nelson, a terrifying kidnapper who always returns his victims home - after he's killed them - reappears from the past, the team is in a race against time to catch the man before he kills again.moreless
With the killer seemingly caught the team believe the case is closed, when another woman is found dead matching the m.o. of the serial killer. Sarah unwittingly becomes the target of the real killer.moreless
The team investigate a serial killer who uses symbols relating to black magic to kill female dancers. Sarah happens to fit the victim's description and is sent undercover to lure out the killer.moreless
A local weatherman is found dead the morning after a tryst; the man's lover is charged with the murder despite her claims of innocence. Shawn is intrigued and becomes a defense consultant in order to gain access to the case.moreless