Captain Duncan McTeague, ashore in Southport, finds a deserted baby boy with a note and half of a dollar bill pinned to its clothing. The note states that the mother hopes some day to return and identify the child with the other half of the dollar bill. McTeague raises the child. When he is four years old, the captain discharges his mate Martin Webber, who seeks revenge by kidnapping the boy. A woman turns up who proves to be the missing mother. Webber is killed and the mother and Captain McTeague are united.