Doctor Baines has been conducting genetic experiments on piranhas and has made them virtually unstoppable. Unfortunately, his assistants, Maggie and Paul, accidentally release the hybrids into the Lost River Lake threatening to destroy everyone in their path. Can they prevent the flesh-eating piranhas from escaping into the ocean and spawning?
William Katt
as Paul Grogan
Alexandra Paul
as Maggie McNamara
Monte Markham
as J.R. Randolph
Darleen Carr
as Dr. Leticia Baines
Mila Kunis
as Susie Grogan
Soleil Moon Frye
as Laura
Kehli O'Byrne
as Gina Green
James Karen
as Governor
Drancy Jackson
as Jimmy
Billie Worley
as Whitney
Shannon Farrara
as Darlene
Kaz Garas
as Sheriff Carl
