While being transported from prison, Werner Zytle orchestrates an escape by poisoning a guard with Vertigo. As Oliver tries to keep Laurel off the streets as a vigilante, Malcolm arrives at the hideout to inform Oliver that to beat Ra's al Ghul he will need to bring Thea into the team. Oliver decides to reveal the truth to Thea who accepts and praises him for the work he has been doing as the Arrow. Laurel tracks down Zytle and takes him on herself, only to be poisoned with Vertigo. Laurel begins to hallucinate images of Sara, who confirms all of Laurel's self doubts. Oliver and Roy arrive in time to save her and get her back to the base for treatment. Later, Oliver brings Laurel along to take down Zytle. Laurel is dosed with Vertigo again, but overcomes her fears to stop Werner. Meanwhile, DJ Chase attempts to kill Thea, but Roy and Malcolm show up; Chase commits suicide when it is clear he has lost. Based on Malcolm's advice, Oliver takes Thea to Lian Yu for training. Laurel meets with Quentin and finally tells him the truth about Sara. In flashbacks, Oliver attempts to contact his family but is captured by A.R.G.U.S. and interrogated for the location of Maseo and Tatsu. Amanda Waller brings Oliver and Maseo to Starling City to find China White.