"Duke" Peters was the he-man in charge of an expedition to Gorilla Land. His mission was to protect the lovely Joan and her scientist father Professor Wright in the jungles of Gorilla Land. He is assisted by Sergeant "Eyes" Wright, U.S. Army ret. who together battle normal and paranormal jungle menaces such as monsters and a race of ape-men or "gorillas" akin to the Mangani from Tarzan.