Nikita and Owen go to London to retrieve one of Division's black boxes and its guardian. Nikita learns that Owen is taking medication that Division discontinued years ago because of its psychological effects to the guardians. Nikita notices Owen is become increasingly obsessed with finding the black box and release its contents to the public, Nikita disagrees and he turns on her. Percy orders Michael to send a team to track and kill the two. Owen leads the team and the guardian to the church where he kills the opponents before Michael and Nikita arrive to destroy the black box and knock Owen out. When he awakens, he decides to stop taking his medication and apologises for killing Daniel. Meanwhile, Amanda overhears Jaden arguing with Alex about the escape tunnels so she hooks Alex up to a lie detector to get the truth out of her once and for all. At first caught on a lie, Alex manages to fool the machine by telling Amanda she was covering for Thom. However, Amanda still has trouble believing her, leading Nikita to hasten Alex's escape plan.