David Callan, secret agent, is called back to the service after his retirement, to handle the assassination of a german businessman, but Callan refuses to co-operate until he finds out why this man is marked for death.
James Mitchell | Author |
Don Sharp | Director |
Lesley De Pettit | Casting |
John Clark | Art Direction |
Wilfred Josephs | Original Music Composer |
Teddy Darvas | Editor |
Derek Horne | Producer |
Harry Benn | Associate Producer |
Ernest Steward | Director of Photography |