Drama · Science-Fiction · Thriller

Threshold: all seasons, episodes and where to watch

CBS drama and science-fiction series (2005–2005), 1 season.

Season complete CBS Listings updated October 7, 2026 Listings

Quick answer · Season 1

Threshold is a drama and science-fiction series that aired on CBS, running from 2005 with 1 season and 9 episodes. Threshold has ended. Its final episode aired on November 22, 2005.

U.S. premiere: September 16, 2005
Where: CBS
Time: Varies by station
Episodes: 13
Finale: November 22, 2005

Where to watch Threshold season 1 in the U.S.

Where to watch Threshold season 1 in the U.S.
Where	How	When	Notes
CBS	Broadcast (free)Antenna / cable	September 16, 2005 – November 22, 2005	Original U.S. run on CBS. [1]

Season 1 episode schedule

Threshold season 1 U.S. episode schedule
Ep.	Title	U.S. date	Time	Status
1	Trees Made of Glass, Part 1	Fri, Sep 16, 2005 ^[1]	Check local listings national slot	Listed
2	Trees Made of Glass , Part 2	Fri, Sep 16, 2005 ^[1]	Check local listings national slot	Listed
3	Blood of the Children	Fri, Sep 23, 2005 ^[1]	Check local listings national slot	Listed
4	The Burning	Fri, Sep 30, 2005 ^[1]	Check local listings national slot	Listed
5	Shock	Fri, Oct 7, 2005 ^[1]	Check local listings national slot	Listed
6	Pulse	Fri, Oct 14, 2005 ^[1]	Check local listings national slot	Listed
7	The Order	Fri, Oct 21, 2005 ^[1]	Check local listings national slot	Listed
8	Revelations	Fri, Nov 4, 2005 ^[1]	Check local listings national slot	Listed
9	Progeny	Tue, Nov 22, 2005 ^[1]	Check local listings national slot	Listed

Dates are U.S. dates. Broadcast times are the network's national slot; your local station may differ.

About Threshold

Threshold is a drama and science-fiction series that aired on CBS, running from 2005 with 1 season and 9 episodes. Threshold has ended. Its final episode aired on November 22, 2005.

Season 1: Season 1 of Threshold aired from September 16, 2005 to November 22, 2005 on CBS (9 episodes).

Network / service: CBS (first aired September 16, 2005)
Main cast over the series (TVmaze): Carla Gugino (Dr. Molly Anne Caffrey), Brian Van Holt (Cavennaugh), Brent Spiner (Dr. Nigel Fenway), Rob Benedict (Lucas Pegg), Peter Dinklage (Arthur Ramsey)

Common questions

How many seasons of Threshold are there?

Threshold has 1 season and 9 episodes listed, airing from September 16, 2005 to November 22, 2005.

Is Threshold cancelled or ended?

Threshold has ended. Its final episode aired on November 22, 2005.

Where can I watch Threshold?

Threshold originally aired on CBS in the U.S. Streaming rights for older seasons change over time, so check CBS's own app and the major streaming services for the current home.