Ship engineer Jim Taggert is rescued from a torpedoed tramp steamer by Joe Morgan, an American gangster that found New York too hot for him, and has become a fisherman operating from an out-of-the-way island off of the coast of South America. Morgan makes his headquarters at the Halfway House run by the parents of Maria Styx as a bar and dance resort catering to the planters and traders of the island. Taggert finds himself practically a prisoner along with a group of American girls acting as entertainers at the resort. Taggert shadows Morgan in his activities in a remote cove and finds that Morgan is supplying German U-boat commanders with torpedoes, but does not know that Morgan has rigged the torpedoes with clock devices that explode when at sea and sinks the U-boats.

An addled Englishman's efforts to save three young women from eviction land them all in jail and leads to other adventures and mischief.

Champion boxer Jimmy Dolan has cultivated a wholesome image for himself, but he's a boozer and womanizer behind the scenes. Intoxicated at a party, he punches a reporter who threatens to expose his hypocrisy, and accidentally kills him. Dolan panics and skips town, winding up on a farm that serves as a home for disabled children run by kindhearted Peggy. As the cynical Dolan falls for Peggy, he begins to change his ways.