Police Lieutenant Lon McQ investigates the killing of his best friend and uncovers corrupt elements of the police department dealing in confiscated drugs.
| Directing | John Sturges | Director |
| Writing | Lawrence Roman | Writer |
| Production | Arthur Gardner | Producer |
| Production | Jules V. Levy | Producer |
| Production | Lawrence Roman | Co-Producer |
| Production | Michael Wayne | Executive Producer |
| Sound | Elmer Bernstein | Original Music Composer |
| Camera | Harry Stradling Jr. | Director of Photography |
| Editing | William H. Ziegler | Editor |
| Production | Nessa Hyams | Casting |
| Art | Walter M. Simonds | Production Design |
| Art | Anthony C. Montenaro | Set Decoration |
| Costume & Make-Up | Joe DiBella | Makeup Artist |
| Costume & Make-Up | Dave Grayson | Makeup Artist |
| Crew | Howard Jensen | Special Effects |
| Camera | Ralph Gerling | Camera Operator |
| Directing | John Franco | Script Supervisor |
| Crew | Hal Needham | Stunt Driver |
| Crew | Ronnie Rondell Jr. | Stunts |
| Crew | Gary McLarty | Stunt Driver |
| Crew | Denny Arnold | Stunts |
| Crew | Bobby Bass | Stunts |
| Crew | Fred Waugh | Stunts |
| Crew | Glenn R. Wilder | Stunts |
| Sound | Tex Rudloff | Sound Re-Recording Mixer |
| Production | John Wayne | Executive Producer |
