In this adventure, a pilot and a radio commentator crash on an island just off the Australian coast and discover a crazed scientist and his three lovely daughters Venus, Urana, and Mercuria. The girls have never seen a man other than their father. When the commentator realizes that the scientist has been working on atomic experiments, he threatens to expose the scientist. In retaliation, the scientist destroys their airplane. Fortunately, the lovely daughters help them build a raft. Unfortunately, the mad mad scientist sets off a dreadful explosion. The ensuing blast attracts the attention of the Australian authorities. The survivors are soon rescued.