Complete story — includes the ending
Flashbacks to Hong Kong show Oliver learning how to effectively torture suspects to get information using his bow and arrow recovered from the island, which he used on Li Khuan Hui. In the present, Oliver and Roy track down the home of Digger Harkness, the boomerang-wielding murderer, but they only find A.R.G.U.S. operatives looking for the same man. Caitlin and Cisco arrive in Starling City to help Felicity investigate Sara's death. Digger attempts to kill Lyla; Roy, Oliver, and Barry Allen arrive and stop him. Later, Lyla reveals Digger was part of the Suicide Squad. Oliver's extreme interrogation methods lead Barry to question Oliver's emotionally stability. Digger finds Oliver's hideout, where he wounds Lyla before escaping. In order to leave town, Digger plants five bombs around the city. While Oliver captures Digger, Barry uses both his and Oliver's teams to defuse the bombs at the same time. Digger is incarcerated on the island with Slade. Lyla accepts Diggle's marriage proposal. Before Barry and his friends depart, he and Oliver decide to have a friendly duel. Note: This episode concludes a crossover event that begins on The Flash season 1 episode 8.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Arrow season 3. HTML formatting and reference markers removed. · Content license