![John Wengraf](http://image.tmdb.org/t/p/w92/ccb8ViZsmwCNogQspG2MfA8WCLl.jpg)
Bruce Bennett plays merchant seaman Archie Gibbs, who manages to survive when his ship is torpedoed by a German submarine. Disguising himself in the uniform of a dead Nazi spy, Gibbs is picked up by the Nazi U-boat. He manages to convince the German sailors that he's the spy, and in this guise he tries to rescue a group of captured Allied scientists.
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