A band of mercenaries led by Captain Curry travel through war-torn Congo across deadly terrain, battling rival armies, to steal $50 million in uncut diamonds. But infighting, sadistic rebels and a time lock jeopardize everything.
| Writing | Wilbur Smith | Novel |
| Sound | Jacques Loussier | Original Music Composer |
| Directing | Jack Cardiff | Director |
| Writing | Adrian Spies | Screenplay |
| Writing | Ranald MacDougall | Screenplay |
| Production | George Englund | Producer |
| Editing | Ernest Walter | Editor |
| Camera | Edward Scaife | Director of Photography |
| Camera | Alan McCabe | Camera Operator |
| Crew | Cliff Richardson | Special Effects |
| Sound | Roy Baker | Sound Editor |
| Art | Reg Bream | Draughtsman |
| Directing | Ted Sturgis | Assistant Director |
| Art | Elliot Scott | Art Direction |
| Sound | Gerry Turner | Sound Recordist |
