Buck Brady is the son of a prospector whose valuable claim was stolen when Buck was a child. Brady grows up with revenge on his mind and retaliates by holding up the mine's payroll messengers. Until, that is, he falls in love with Janet, the new owner.

An embellished account of the 1803 expedition by famed frigate U.S.S. Constitution--a.k.a. "Old Ironsides"--against the Barbary pirates then terrorizing American shipping, focusing on the crew and passengers of a fictional merchant ship, The Esther, who fall afoul of the same pirates and thus become involved with the Constitution's mission.

Wanting his son to get away from his many girlfriends and buckle down to work, the New York industrialist father of a playboy sends him to an obscure village in Spain to find samples of a rare mineral. When the son gets to Spain, he runs afoul of the local police chief - who has a secret that he tries to keep the young man from discovering.

A young Indiana schoolteacher finds himself embroiled in local conflicts when he falls in love with an indentured servant and must discover the identity of a gang of bandits who are terrorizing the local population.