The fates of the Big Horn's survivors are shrouded in mystery, with at least one and possibly seven individuals still alive. A mysterious figure reappears, menacing Dr. Caffrey and possibly trying to make contact, before disappearing without explanation.
1. Trees Made of Glass: Part 1
Aired: Sep 16, 2005A team of scientists, led by Dr. Caffrey, embarks on a mission to unravel the...
2. Trees Made of Glass: Part 2
Aired: Sep 16, 2005The fates of the Big Horn's survivors are shrouded in mystery, with at least ...
Aired: Sep 23, 2005The Threshold team delves into a bizarre incident at a fast-food eatery, whic...
Aired: Sep 30, 2005A mentally unstable individual has escaped from custody, and the team is raci...
Aired: Oct 7, 2005A charismatic con artist navigates a complex web of law enforcement agencies ...
Aired: Oct 14, 2005A Miami DJ unwittingly unleashes a deadly threat when she incorporates an ali...
Aired: Oct 21, 2005In the next episode, the Red Team delves into a mystifying phenomenon in a co...
Aired: Nov 4, 2005In the next episode, FBI agents Caffrey and Cavennaugh track down a crucial l...
Aired: Nov 22, 2005The Red Team's investigation into the mysterious outbreak takes a significant...
Aired: Jan 11, 2006A surprise rebellion by the infected prisoners in Threshold's care sparks a s...
Aired: Jan 18, 2006A deadly outbreak sparks a desperate quest for answers as the team mourns the...
Aired: Jan 25, 2006A serial killer, infected with an alien virus, brutally murders a stripper in...
Aired: Feb 1, 2006A sudden foodborne illness triggers a catastrophic event as Dr. Caffrey and A...
Main Cast
Guest Starring
