This tale of intrigue finds Valentina Cortese involved in an assassination plot. She helps the police apprehend the conspirators after an innocent bystander is accidentally killed.
The story of the HMS Torrin, from it's construction to its sinking in the Mediterranean during action in World War II. The ship's first and only commanding officer is Captain E.V. Kinross, who trains his men not only to be loyal to him and the country, but—most importantly—to themselves.
Three sailors get drunk while on shore leave and end up on the wrong ship. When they realise their mistake they scramble off it and onto their warship, HMS Ferocious. However, they soon realise that the vessel they have boarded is not the Ferocious but a German battleship.