In this espionage drama, a Secret Service agent must discover who has been smuggling British arms into China. The prime suspect is a prosperous Chinese merchant-philanthropist and the agent thinks the merchant is working with the notorious Chinese guerilla warlord General Ling.
| Sound | Jack Beaver | Music |
| Directing | Ladislao Vajda | Director |
| Writing | Dorothy Hope | Adaptation |
| Writing | Peter Cheyney | Story |
| Writing | Ákos Tolnay | Screenplay |
| Production | John Stafford | Producer |
| Editing | David Lean | Editor |
| Camera | James Wilson | Director of Photography |