The Stooges join the war effort by enlisting in the Merchant Marines. While aboard ship, they have a brief run-in with Lt. Dungen, a secret German Nazi officer played by Vernon Dent, and then mistake a torpedo for a beached whale. Moe says they have to kill it, and it promptly explodes. After being lost at sea for several days, they come across the SS Schicklgruber and climb aboard. Now with fully grown beards, they encounter Lt. Dungen again, who does not recognize them. After realizing they are in with a nest of German sailors, they eventually overtake the crew and toss them overboard.