Mutant snakes survived a terrorist attack on a government laboratory, and they now threaten the town of Santa Mira Springs, California. Seismic activity has brought snakes to the surface, where residents are being bitten. Victims can transmit the virus to healthy persons. The military puts the town under quarantine. Local physicians try to control the epidemic, while the military is primarily concerned with keeping the virus a secret.
Treat Williams
as Dr. David Henning
Mary Page Keller
as Dr. Christine Edmonton Henning
Hannes Jaenicke
as Dr. Eric Foreman
Catherine Dent
as Susan Edmonton
Tony Denison
as Maj. Gen. Thomas Sparks
Geoff Pierson
as Gen. Arthur Manchek
Brian Poth
as Billy Sanderson
Nicole Nieth
as Cindy Sanderson
Jim Storm
as Sheriff Jack Crowley
Rick Hurst
as Edgar Williams
Melissa Hayden
as Katy
Marc McClure
as Dr. Dutton
