Cast
Alien seeds hitch a ride to earth in a space shuttle crew and begin to grow. When their numbers reach the Threshold amount they will be an unstoppable swarm.
Nicholas Lea (Acting)
Jamie Luner (Acting)
Steve Bacic (Acting)
David Lipper (Acting)
Teryl Rothery (Acting)
Karl Pruner (Acting)
Anthony Sherwood (Acting)
Marie Ward (Acting)
Stephen J. Cannell (Creator)
Colin Glazer (Acting)
Patrick Garrow (Acting)
12 August 2012
15 August 1997
13 March 2004
13 March 2009
17 September 2003
15 December 2021
27 March 2024
23 April 2025
1 October 2019
30 May 2019
19 July 2023
8 May 2024
16 April 2025
15 September 2021
9 July 2020
2 July 2025
27 November 2019
5 February 2021
7 December 2023
5 November 2014
1 April 2003