A prehistoric octopus of monstrous proportions, stirred from its sleep in the North Sea by underwater explosions, migrates to the U.S. Gulf Coast and menaces a seaside community. A scientist turns his trained killer whales against the octopus, and the giant sea creatures battle to the death.
- Executive Producer: Ovidio G. Assonitis
- Composer: Stelvio Cipriani
- Screenplay: Tito Carpi
- Editor: A.J. Curi
- Screenplay: Steve Carabatsos
- Director: Oliver Hellman
- Producer: Enzo Doria
- Screenplay: Sonia Molenti
- Screenplay: Jerome Max
- Cinematographer: Roberto D'Ettorre Piazzoli
