United States Marine Corps Captain "Happy" Smith and Gunnery Sergeant Wilmer lead a squadron of Marines in a search of a party of American tourists lost in a Central America banana republic jungle.
Happy Smith
Gunnery Sgt. Wilmer (as Guinn Williams)
Mary Dyer
Innocencia
Señor Carroles
Buffalo Bill Ryan
Pvt. Murphy
Spike Connelly
O'Farrell
Bugs McGuire
Fritz
Hendricks
Major (as Joseph Girard)