Plot: Threshold was a science fiction drama television series that first aired on CBS in September 2005. Produced by Brannon Braga, David S

Threshold
First Episode Aired On:
Friday, September 16 2005
19 years ago
Friday, September 16 2005
19 years ago
Last Episode Aired On:
Wednesday, February 1 2006
19 years ago
Wednesday, February 1 2006
19 years ago
Number of seasons: 1 (13 episodes)