A rural Colombian village is attacked by a horrible sea serpent, aroused by industrial pollution of a nearby lake. Based on a real event that took place in June of 1971.

James Mitchum
as Travis

John Carradine
as Priest

Philip Carey
as Barnes

Anthony Eisley
as Pete

Andrea Hartford
as Andrea

Glen Hartford
as Glen

Coral Kassel
as Girl in Lake

Hanna Landy
as Mrs. Byrd

Aldo Sambrell
as

María Rubio
as