Episode 1
Trees Made of Glass (1)
A mysterious alien object attacks a Naval ship and crew. Dr. Molly Anne Caffrey, a government contingency anal...
Episode 2
Trees Made of Glass (2)
Gunneson reappears in Caffrey's house. Meanwhile, Lucas, Nigel and Ramsey try to break down how the alien sign...
Episode 3
Blood of the Children
When a man at a fast-food restaurant is found with his head imploded, Molly and her Red Team investigate and b...
Episode 4
The Burning
A patient at an psychiatric hospital in Ohio escapes and Molly believes he may have been infected by the alien...
Episode 5
Shock
After a shipyard gang bust, a suspected fugitive Big Horn crewmember kills a police detective. Molly and Caven...
Episode 6
Pulse
As the signal from the Big Horn invades a Miami rave, the team investigates who have been infected, trying to...
Episode 7
The Order
Molly and Cavennaugh investigate a newspaper leak regarding the Threshold program which might turn out to be a...
Episode 8
Revelations
Molly and Cavennaugh discover some strange happenings in a missing Big Horn crew member's hometown when they i...
Episode 9
Progeny
When three women from completely different walks of life appear to be infected, Molly and the Red Team discove...
Episode 10
The Crossing
Molly and Baylock realize the Threshold detainees must be moved immediately to a more secure facility in West...
Episode 11
Outbreak (a.k.a. Escalation)
Lucas is infected with the alien DNA from something he ate. The infectees have harvested crops with the alien...
Episode 12
Vigilante
When a number of infectees and seemingly innocent people are killed, it becomes apparent that someone is going...
Episode 13
Alienville
Molly Caffrey and Cavennaugh go out to a town call Allenville in search of a Doctor who they think is infected...