A group of ruthless Chicago mob enforcers are sent to Kansas City to settle things with the owner of a slaughterhouse who has taken money that is not his to keep.
| Directing | Michael Ritchie | Director |
| Camera | Gene Polito | Director of Photography |
| Production | Joe Wizan | Producer |
| Sound | Lalo Schifrin | Original Music Composer |
| Sound | Barry Thomas | Sound Mixer |
| Production | Hoyt Bowers | Casting |
| Art | Bill Malley | Art Direction |
| Camera | Orlando Suero | Still Photographer |
| Editing | Carl Pingitore | Editor |
| Costume & Make-Up | Ken Chase | Makeup Artist |
| Costume & Make-Up | Salli Bailey | Hairstylist |
| Directing | Michael Daves | Assistant Director |
| Production | David Salven | Unit Production Manager |
| Art | James W. Payne | Set Decoration |
| Production | Kenneth L. Evans | Executive Producer |
| Costume & Make-Up | Patricia Norris | Costume Designer |
| Costume & Make-Up | Ray Summers | Wardrobe Supervisor |
| Costume & Make-Up | Emile LaVigne | Makeup Artist |
| Production | Mickey Borofsky | Associate Producer |
| Writing | Robert Dillon | Screenplay |
| Crew | Buddy Van Horn | Stunts |
| Directing | Ronald R. Grow | Second Assistant Director |
| Crew | Logan Frazee | Special Effects |
| Crew | John Hudkins | Stunt Coordinator |
| Crew | Bob Herron | Stunts |
| Crew | Ted White | Stunts |
| Lighting | Clifford Hutchison | Gaffer |
| Directing | Charlsie Bryant | Script Supervisor |
| Sound | Ed Forsyth | Music Supervisor |
