Due to a possible cholera epidemic onboard, passengers on a ship are forced to disembark at Pago Pago, a small village on a Pacific island where it incessantly rains. Among the stranded passengers are Sadie Thompson, a prostitute, and Alfred Davidson, a fanatic missionary who will try to redeem her.

A Polynesian sailor is separated from his wife when he's unjustly imprisoned for defending himself against a colonial bully. Members of the community petition the governor for clemency but all pretense of law and order are soon shattered by an incoming tropical storm.

Fletcher Christian successfully leads a revolt against the ruthless Captain Bligh on the HMS Bounty. However, Bligh returns one year later, hell bent on revenge.