Sophia successfully transports her people in a surprising way!
While Sophia moves forward with a deadly plot, Sean finally reunites with Leila.
Christina plays a key role in saving her husband while Sean and Vicky fail to stop the virus from getting to Sophia.
While Sean and Vicky try to stop the spread of a deadly virus, Michael makes a courageous move that has upsetting consequences.
Jarvis poisons the President and doesn't realize he's being played by Sophia. Michael and Leila keep a secret from Sophia. Sean and Vicky find a mysterious corpse.
Sophia tricks Jarvis into joining forces with her and Dempsey commits suicide right in front of Sean and Vicky.
Simon tries to stop Sophia from destroying human civilization. Dempsey's men capture Vicky. Martinez suspects his wife might be a Sleeper.
Martinez takes severe action against the sleepers while Dempsey makes a thrilling discovery.
Sean forces Vicky to work with him in his attempt to get to Dempsey. Their first step is questioning Jarvis about Dempsey's whereabouts. Thomas tells the sleepers that all of their people must move to Earth.
Thomas and Hanson trick Sophia into telling Martinez to remove uranium from a nuclear power plant. As soon as the uranium leaves, Thomas and his men hijack the truck. Sean attempts to team up with Vicky.
Martinez makes a deal with Lewis to keep her quiet. Thomas flees with the Inostranka detainees and kills those loyal to Sophia. Sterling learns that the detainees are largely good-natured when one of them takes a bullet aimed for him.
Martinez learns that the communications satellite sent a message stating that "Preparations are being made for your arrival." Senator Catherine Lewis demands to know what really happened at Inostranka.
Thomas and Isabel launch a mysterious satellite, and Leila discovers a shocking secret about her father.
Sophia learns that Thomas and Isabel are scheming behind her back and exacts revenge on Isabel. Sean and Leila track down Abby, a prematurely wrinkled girl who has clues to Samantha's whereabouts.
Martinez learns that Jarvis played a key role in the assassination plot. Leila saves Sean from a near-fatal gunshot wound.
While Sterling investigates the identity of a double-crossing government informant, Samantha resurfaces.