The Event Episode Guides
Sean Walker tries to find Leila after she disappears on a cruise. President Martinez learns that releasing the detainees is a more complicated proposition than he originally conceived.
To Keep Us Safe
President Martinez and his staff attempt to triage the plane crash situation. Thomas presents his take on the detainees.
Protect Them from the Truth
Agent Collier takes his investigation to a new level. President Martinez steps up pressure on Sophia.
A Matter of Life and Death
The President hopes that Sophia's information will help them deal with the disease issue. Dempsey's influence over world events becomes apparent.
Casualties of War
The government tries to quell the biological disaster.
Sean hopes to find clues at Leila's house. President Martinez makes a poor decision in his dealings with Thomas.
I Know Who You Are
Sterling starts to look into his own people to find the leak at the President's behest. Finding herself questioned by Thomas, Sophia reestablishes her authority.
For The Good of Our Country
President Martinez takes an interrogation into his own hands and learns that the threats to his life are closer than he thought. Sean and Leila do their best to stay out of sight of the forces that continue to hound them.
Your World To Take
Sophia tries to deal with dissent in the ranks. Dempsey continues to pursue Sean and Leila.
Everything Will Change
The tables are turned on President Martinez when he tries to deal with the traitor. Sophia refuses to fully trust Thomas and Isabel, so Simon does some digging. Sean and Leila search for Samantha.
And Then There Were More
The communications satellite relays a strange message. Senator Lewis looks to speak out on Inostranka but President Martinez looks to control the flow of information.
Sterling learns the truth about the detainees. Martinez makes an uneasy agreement with Senator Lewis.
With the help of Richard and Sterling, President Martinez takes control of the situation after the detainees escape. Michael begins hunting Thomas, leaving Leila with Diane Geller.
A Message Back
Thomas shares a new message with the Sleepers, and President Martinez goes after Vice President Ray Jarvis for his treachery. Dempsey tries to find aliens to experiment on.
President Martinez prepares to launch a military raid on a church filled with the Sleepers, but Sophia causes an earthquake that takes down the Washington Monument, forcing Martinez to negotiate.
You Bury Other Things Too
President Martinez enlists the help of Senator Lewis to develop a test for Sleepers and a plan to cleanse the White House of spies. Sean and Vicky close in on Dempsey, though he might be expecting them.
Cut Off The Head
Sophia enlists Vice President Jarvis in a plot to kill the President. The President starts to doubt his wife's past, and whether she is a sleeper agent..
The Vice President poisons the President, but Sterling and Peel are unable to prove it. Sean and Vicki learn that Sophia's weapon is a virus, and they try to stop it from getting from Russia to the United States.
Us or Them
The Vice President is sworn into the Presidency, but Sterling finds the evidence he needs to prove that Martinez was poisoned. When he brings it to the Acting President, he is dismissed from his position. Sean and Vicky chase the carrier of the viral weapon onto a plane bound for the United States, but the courier manages to evade them.
One Will Live, One Will Die
Simon approaches Sterling with the antidote for the poison killing Martinez, but they soon find themselves on the run from the authorities as the Jarvis declares them traitors, ordering an airstrike on their meeting place. Sean and Vicki rush to stop the release of the virus into a crowded mall. Sophia plans to better synthesize the virus by testing it on human/alien hybrid Leila.
The Beginning of the End
Martinez recovers and returns to the White House to take back the government from the treacherous Vice President. Sophia prepares to unleash the virus, while Sean and Vicky team up with Sterling and Simon to stop it.
Martinez wrests power back from Jarvis, Sophia's plans to release the virus are foiled and she is taken captive, but not before her people open a portal that causes earthquakes and brings their planet into orbit of the Earth.
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