Manfred, backed by Saracen pirates, deposes the Duke of Montfort, takes over the throne and kidnapped the Duke's young son. Capt. Riccardo, the leader of a pirate band on the ship Black Hawk, sets out to defeat Manfred and his Saracens and restore the Duke to his rightful place on the throne.
Jeff and Luck, seal hunters aboard The Viking, both love the same girl. She loves Luck but fears Jeff. Lost in the ice following a storm, Luck saves Jeff, who disappears so as not to be an obstacle to the love of the two young people.
