Season
- Season 1 2005-09-16
Episode
- Episode 1: Trees Made of Glass (1)
- Episode 2: Trees Made of Glass (2)
- Episode 3: Blood of the Children
- Episode 4: The Burning
- Episode 5: Shock
- Episode 6: Pulse
- Episode 7: The Order
- Episode 8: Revelations
- Episode 9: Progeny
- Episode 10: The Crossing
- Episode 11: Outbreak (a.k.a. Escalation)
- Episode 12: Vigilante
- Episode 13: Alienville
Threshold
Threshold was a science fiction drama television series that first aired on CBS in September 2005. Produced by Brannon Braga, David S. Goyer and David Heyman, the series focuses on a secret government project investigating the first contact with an extraterrestrial species.
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