When an unauthorized letter is sent to Moscow alleging the U.S. government's willingness to help Russia attack China, former naval officer Charles Rone and his team are sent to retrieve it. They go undercover, successfully reaching out to Erika Kosnov, the wife of a former agent, now married to the head of Russia's secret police. Their plans are interrupted, however, when their Moscow hideout is raided by a cunning politician.
| Directing | John Huston | Director |
| Writing | Noel Behn | Novel |
| Sound | Robert Drasnin | Original Music Composer |
| Camera | Edward Scaife | Director of Photography |
| Editing | Russell Lloyd | Editor |
| Production | Carter DeHaven | Producer |
| Production | Sam Wiesenthal | Producer |
| Writing | John Huston | Screenplay |
| Writing | Gladys Hill | Screenplay |
| Production | John Huston | Producer |
| Production | Robert Lennard | Casting |
| Art | Ted Haworth | Production Design |
| Art | Elven Webb | Art Direction |
| Art | Dario Simoni | Set Decoration |
| Costume & Make-Up | John Furniss | Costume Design |
| Costume & Make-Up | George Frost | Makeup Supervisor |
