![](https://image.tmdb.org/t/p/original/56yYrVBp1u8ihrwCjIGJz8EPPhE.jpg)
![](https://image.tmdb.org/t/p/w200/cH1C1K5gPeNapdy67B9EJWSzcEc.jpg)
HITS HIGH-WATER MARK of ACTION!
Merchant seaman Archie Gibbs 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.