When a British secret agent's body washes up on the coast of Ireland, evidence implies that he was a traitor providing information to the Russians.
| Directing | Francis Searle | Director |
| Writing | Francis Searle | Screenplay |
| Production | Francis Searle | Producer |
| Sound | Ken Thorne | Music |
| Editing | Jim Connock | Editor |
| Art | Duncan Sutherland | Art Direction |
| Camera | Ken Hodges | Director of Photography |
| Production | Ryck Rydon | Associate Producer |
| Costume & Make-Up | Jimmy Evans | Makeup Artist |
| Costume & Make-Up | Helen Penfold | Hairdresser |
| Production | Clive Midwinter | Production Manager |
| Directing | Frank Nesbitt | First Assistant Director |
| Sound | Wally Milner | Sound Mixer |
| Sound | Don Wortham | Boom Operator |
| Camera | Terry Maher | Camera Operator |
| Editing | John Leeds | Assistant Editor |
| Sound | Philip Martell | Music Director |
| Directing | Doreen Soan | Continuity |
| Directing | Gordon Wellesley | Script Supervisor |
