Episode list

In a race to stop the virus - Roger Bart and Roma Maffia guest star.

President Martinez and Blake Sterling have the Sleepers surrounded, but after Sophia triggers a national disaster, negotiations ensue. Elsewhere, with a lead on the whereabouts of Dempsey, Sean and Vicky continue on their mission.

Lee tries to get help taking the antidote to president Martinez. Sean and Vicky try to stop Sophia's virus at all cost and save hundreds of people. Jarvis continues as a puppet in the hands of Sophia... but something he wasn't expecting happens.

Martinez having received the antidote returns to work looking for revenge. Sophia continues her plan but battles an inner demon. Sean, Vicky, Simon, and Sterling work together to locate and stop Sophia.

President Martinez's administration unveils a tough new strategy to force Sophia to reveal the detainees' plan, putting into play a new detainee, Maya. Elsewhere, we learn that Vicky and Carter are in possession of a crucial hostage. FBI Agent Collier's suspicion grows deeper.

The biological threat intensifies. The CDC rushes to identify the contagion and treat the infected people, while the White House and Director of National Intelligence face a difficult dilemma in their negotiation with Thomas. Meanwhile, Simon appeals to Sophia to turn on Thomas. Elsewhere, FBI Agent Collier closes in on Vicky and Carter, but appearances are not always what they seem.

The White House grapples with a mysterious biological threat. Their only hope is to crack Sophia during interrogation. Meanwhile, Vicky and Carter keep their hostage captive while they await further instructions. FBI Agent Collier, on her search for Leila, stumbles upon Vicky's secret life. Elsewhere, a powerful businessman, Dempsey with classified intelligence and ties to the White House, emerges from the shadows.

President Martinez and the Director of National Intelligence, Blake Sterling, fulfill their agreement with Thomas, but after their plan goes awry, they suspect that there is a possible mole in their midst. Elsewhere, Sean Walker digs for answers at Leila's home, where he encounters Madeline, a mysterious conspiracy theorist. Meanwhile, Simon's past is illuminated, and his allegiances are tested.

President Martinez, furious about recent security failures, demands answers from Director of National Intelligence, Blake Sterling. When he doesn't receive the progress that he desires, Martinez decides to personally interrogate Michael Buchanan about his involvement in the assassination attempt. While Michael holds to his claim that he doesn't know who is involved, he inadvertently reveals incriminating evidence about someone deep inside the President's staff. Meanwhile, Dempsey dispatches Vicky on a new clandestine mission. And, elsewhere, Sean and Leila scramble to stay ahead of the covert ops that are trying to silence them and what they know.

President Martinez confronts the traitor in his administration, only to be met with threats of exposing the cover-up of Avias Air 514. Even after testing the loyalty of Isabel and Thomas, Sophia still suspects their subterfuge, so she sends Simon on a fact-finding mission. Her suspicions are confirmed when Thomas unveils a shocking new plan. Meanwhile, on the hunt for Samantha, Sean and Leila battle the mercenaries sent by Dempsey.