The Leiningen South American cocoa plantation is threatened by a 2-mile-wide, 20-mile-long column of army ants.

Eleanor Parker
as Joanna Leiningen

Charlton Heston
as Christopher Leiningen

Abraham Sofaer
as Incacha

William Conrad
as Commissioner

Romo Vincent
as Boat Captain

Douglas Fowley
as Medicine Man

John Dierkes
as Gruber

Leonard Strong
as Kutina

Norma Calderón
as Zala

Jerado Decordovier
as