A small town in Texas finds itself under attack from a hungry, fifty-foot-long gila monster. No longer content to forage in the desert, the giant lizard begins chomping on motorists and train passengers before descending upon the town itself. Only Chase Winstead, a quick-thinking mechanic, can save the town from being wiped out.

Don Sullivan
as Chase Winstead

Fred Graham
as Sheriff Jeff

Lisa Simone
as Lisa

Shug Fisher
as Old Man Harris

Bob Thompson
as Mr. Wheeler

Janice Stone
as Missy Winstead

Ken Knox
as Horatio Alger 'Steamroller' Smith

Gay McLendon
as Mom Winstead

Don Flournoy
as Gordy

Cecil Hunt
as Mr. Compton