Jungle Jim must protect rare pony-like animals whose glands produce a powerful narcotic. On the way, he fights a giant spider.
Johnny Weissmüller
as Jungle Jim
Sherry Moreland
as Leta
William Henry
as Ronald Cameron
Lyle Talbot
as Grant
Joel Friedkin
as Prof. Dunham
George Eldredge
as Barnes
Paul Marion
as Raadi
Rusty Wescoatt
as Magruder
Pierce Lyden
as Allen
Tamba
as Tamba The Chimp
Blanca Vischer
as Mahara
