Corporal Larry Grant and Sergeant "Mac" McGowan, of the United States Marine Corps, are rival for the love of Frances Schiller, but team up to hunt down "The Tiger Shark," a mad, scientific wizard who is holding Sergeant William Schiller, Frances' brother, a prisoner on a wild, jungle island in the Pacific.
DirectorsB. Reeves Eason, Joseph Kane
WritersWallace MacDonald, Maurice Geraghty, Ray Trampe, Sherman L. Lowe, Barney A. Sarecky
