A deep-sea salvage expert enacts an elaborate plan to infiltrate and take revenge on a criminal organization that dealt him a foul misdeed.
| Directing | Michael Tuchner | Director |
| Writing | Alistair MacLean | Novel |
| Writing | Robert Carrington | Screenplay |
| Production | Jay Kanter | Producer |
| Camera | Alex Thomson | Director of Photography |
| Production | Alan Ladd Jr. | Producer |
| Production | Mary Selway | Casting |
| Art | Syd Cain | Production Design |
| Production | Elliott Kastner | Executive Producer |
| Production | Gavrik Losey | Associate Producer |
| Editing | Ray Lovejoy | Editor |
| Sound | Roy Budd | Music |
| Art | Maurice Carter | Production Design |
| Costume & Make-Up | Ronnie Cogan | Hairstylist |
| Costume & Make-Up | Bob Lawrance | Makeup Artist |
| Directing | Colin M. Brewer | Assistant Director |
| Directing | Peter Cotton | Third Assistant Director |
| Directing | Chris Kenny | Second Assistant Director |
| Directing | David Munro | Second Assistant Director |
| Art | Simon Wakefield | Set Dresser |
| Sound | Stan Fiferman | ADR Editor |
| Sound | Tony Jackson | Sound Recordist |
| Crew | Derek Meddings | Special Effects |
| Crew | Nick Allder | Special Effects |
| Crew | Joie Chitwood Jr. | Stunt Driver |
| Crew | Carey Loftin | Stunt Driver |
| Crew | Carey Loftin | Stunt Coordinator |
| Crew | Joe Powell | Stunts |
| Camera | Colin Corby | Camera Operator |
| Crew | K.C. Jones | Second Unit Cinematographer |
| Editing | Brian Frost | First Assistant Editor |
| Sound | Bill Rowe | Sound Re-Recording Mixer |
