Roy Parmenter is an FBI agent in San Diego; 20 years ago his partner was killed by a Soviet spy, nicknamed Scuba, still at large. Scuba is now trying to extort the Soviets; to prove he's serious, he's killing their agents one by one, including "sleepers," agents under deep cover awaiting orders. Roy interviews a high school lad, Jeff Grant, an applicant to the Air Force Academy. In a routine background check, Roy discovers that Jeff's parents are sleepers. He must see if Jeff is also a spy, confront the parents yet protect them, and catch his nemesis. Meanwhile, the Soviets have sent their own spy-catcher, the loner Karpov, to reel in Scuba. Alliances shift; it's cat and mouse.
| Camera | László Kovács | Director of Photography |
| Directing | Richard Benjamin | Director |
| Writing | Bo Goldman | Screenplay |
| Production | Harry Gittes | Producer |
| Sound | Marvin Hamlisch | Original Music Composer |
| Editing | Jacqueline Cambas | Editor |
| Writing | John Hill | Screenplay |
| Production | Julio Medina | Co-Producer |
| Production | Gail Mutrux | Associate Producer |
| Writing | Tom Musca | Story |
| Writing | Terry Schwartz | Story |
| Production | David Rubin | Casting |
| Art | Gene Callahan | Production Design |
| Art | Hub Braden | Art Direction |
| Art | Lee Poll | Set Decoration |
| Costume & Make-Up | Patricia Norris | Costume Design |
| Costume & Make-Up | Dorothy Byrne | Hairstylist |
| Costume & Make-Up | Bob Mills | Makeup Artist |
| Production | Art Levinson | Unit Production Manager |
| Crew | Conrad E. Palmisano | Stunt Coordinator |
| Directing | Dennis Maguire | First Assistant Director |
| Directing | Robin R. Oliver | Second Assistant Director |
| Camera | Ray De La Motte | Camera Operator |
| Camera | Joseph E. Thibo | First Assistant Camera |
| Camera | Brian W. Armstrong | Second Assistant Camera |
| Directing | Ray Quiroz | Script Supervisor |
| Art | Mark Hite | Leadman |
| Art | Ann Harris | Set Designer |
| Art | Sherman Labby | Production Illustrator |
| Art | Emily Ferry | Property Master |
| Sound | Jerry Jost | Sound Mixer |
| Sound | Dennis Jones | Boom Operator |
| Sound | Robert J. Litt | Sound Re-Recording Mixer |
| Sound | B. Tennyson Sebastian II | Sound Re-Recording Mixer |
| Sound | Elliot Tyson | Sound Re-Recording Mixer |
| Sound | Louis L. Edemann | Supervising Sound Editor |
| Sound | Larry Carow | Sound Editor |
| Sound | Leonard T. Geschke | Sound Editor |
| Sound | Colin C. Mouat | Sound Editor |
| Sound | Chuck Neely | Sound Editor |
| Sound | Jay Engel | ADR Editor |
| Production | Barbara Harris | ADR Voice Casting |
| Sound | Tom Carlin | Music Editor |
| Sound | Jack Hayes | Orchestrator |
| Costume & Make-Up | Dan Bronson | Costumer |
| Camera | Len Hekel | Still Photographer |
| Crew | Vic Heutschy | Unit Publicist |
| Lighting | Richmond L. Aguilar | Chief Lighting Technician |
| Lighting | Paul Caven | Best Boy Electric |
| Camera | Gene Kearney | Key Grip |
| Camera | Donald L. Hartley | Dolly Grip |
| Art | Marvin Salsberg | Construction Coordinator |
| Art | David Gabrielli | Construction Foreman |
| Art | Donald R. Abblett | Standby Painter |
| Production | Greg Lazzaro | Location Manager |
| Crew | Gene R. Johnson | Transportation Coordinator |
| Crew | Jerry F. Johnson | Transportation Captain |
| Production | Lisa Beach | Casting Assistant |
| Editing | Gary Burritt | Negative Cutter |
| Editing | Phil Hetos | Color Timer |
| Directing | Conrad E. Palmisano | Second Unit Director |
| Directing | Josh McLaglen | Second Unit First Assistant Director |
