During the War of 1812 against Britain: General Andrew Jackson has only 1,200 men left to defend New Orleans when he learns that a British fleet will arrive with 60 ships and 16,000 men to take the city. In this situation an island near the city becomes strategically important to both parties, but it's inhabited by the last big buccaneer: Jean Lafitte. Although Lafitte never attacks American ships, the governor hates him for selling merchandise without taxes - and is loved by the citizens for the same reason. When the big fight gets nearer, Lafitte is drawn between the fronts. His heart belongs to America, but his people urge him to join the party that's more likely to win.
Georgia Garrett is sent by jealous wife Elvira Kent on an ocean cruise to masquerade as herself while she secretly stays home to catch her husband cheating. Meanwhile equally suspicious husband Michael Kent has sent a private eye on the same cruise to catch his wife cheating. Love and confusion ensues along with plenty of musical numbers.
Timeworn Joe Collins and his fellow inmates live under the heavy thumb of the sadistic, power-tripping guard Captain Munsey. Only Collins' dreams of escape keep him going, but how can he possibly bust out of Munsey's chains?
A Martinique charter boat skipper gets mixed up with the underground French resistance operatives during WWII.
Captain Stone's newly recruited officer, Tom Merriam, idolizes his senior who treats him like a friend. But when a couple of his crew members die mysteriously, Tom starts doubting Stone's authority.
A gold-digger hopes to land a rich husband in Trinidad, but gets mixed up with a beach boy and voodoo.
The Two Yanks in Trinidad are gangsters Tim Reardon (Pat O'Brien) and Vince Barrows (Brian Donlevy), who split up over a disagreement and join the army, Tim to escape Vince's wrath and Vince to get his lunch-hooks on Tim. Both of our heroes run afoul of Army discipline and protocol in general, and tough top sergeant Valentine (Donald MacBride).