Tarzan's son Jack is kidnapped from England by his old enemy Paulovich. Jack escapes into the African jungle where he meets Meriem, a European girl held captive. Freeing her, he falls in love but she's sought by Paulovich. Then Tarzan arrives with Jane to save the day!
Humphrey Van Weyden and Maud Brewster are rescued by a nearby ship when the ferry they're on is rammed and sinks. However, instead of dropping them off ashore, the ship's fearsome captain, the brutal Wolf Larsen, forces Humphrey to work as a cabin boy--and has other ideas for the pretty young Maud....
