A ship carrying a touring circus troupe sinks at sea, and Lorraine, a young girl, is washed up on a deserted island. Her only companion is a gorilla from the circus, Bimi, who raises her as its own. Several years later Lorraine's wealthy grandfather, who has hired a psychic to help find her, is led by the psychic to Lorraine's island, and she and Bimi are taken back to "civiliation" in San Francisco, but things don't work out exactly as planned.