A prisoner leads his counterparts in a protest for better living conditions which turns violent and ugly.

A submarine commander is on a relentless pursuit of a Japanese aircraft carrier in the South Seas during World War II.

Future “first couple” Ronald Reagan and Nancy Davis made their only joint film appearance in Hellcats of the Navy. Ronnie plays Casey Abbott, commander of a WW2 submarine, while Nancy portrays navy nurse Helen Blair, Abbott’s off-and-on girlfriend. During a delicate mission in which his sub is ordered to retrieve a revolutionary new Japanese mine, Abbott is forced to leave frogman Wes Barton (Harry Lauter) behind to save the rest of his crew. But Abbott’s second-in-command Don Landon (Eduard Franz) is convincing that Abbott’s sacrifice of Barton was due to the fact that the dead man had been amorously pursuing Helen.