Sara goes on a killing spree, and Oliver realizes that when she was brought back, her soul didn't come back with her. As Sara stalks the person who killed her, Oliver turns to an old friend from Lian Yu for help: the sorcerer John Constantine.

While Green Arrow and his team set out to recover Andy from Damien's forces, Ray tells Felicity that he's not sure what he's going to do with his future. Meanwhile, Thea receives a visit from Malcolm and gives in to her bloodlust in front of a shocked Alex.