Virginia Dean enjoys a yachting trip with her father. She falls in love with the captain of the boat, John Reynolds. A gang of criminals has stowed away on board and they take over the yacht and set her father and the crew adrift in a small boat. However, they keep John and Virginia on board. When the yacht catches fire, they all abandon ship and take refuge on a nearby tropical island. Blackie Slade, the leader of the villains, rouses the natives to attack the others