In 1939, Sir Robert Thorndyke takes aim at Adolf Hitler with a high powered rifle, but the shot misses its mark. Captured and tortured by the Gestapo and left for dead, Sir Robert makes his way back to England where he discovers the Gestapo has followed him. Knowing that his government would turn him over to German authorities, Sir Robert goes underground in his battle with his pursuers.
| Production | Mark Shivas | Producer |
| Writing | Geoffrey Household | Novel |
| Directing | Clive Donner | Director |
| Editing | Dan Rae | Editor |
| Writing | Frederic Raphael | Writer |
| Camera | Brian Tufano | Director of Photography |
| Sound | Christopher Gunning | Original Music Composer |
| Art | Tony Abbott | Production Design |
| Costume & Make-Up | John Bloomfield | Costume Design |
| Costume & Make-Up | Shirley Boakes | Makeup Artist |