The film stars William Lundigan, Peggie Castle, Armando Silvestre, Rosenda Monteros and Jorge Treviño.

[1][2][3] Robert Burton, an archeologist, hears about, and decides he is going to find, a hidden civilization where little has changed in hundreds of years.

In Mexico they meet vanilla bean plantation owner Juan Cervantes who has knowledge about the forbidden city.

He demands that no weapon be taken, but Burton conceals a small gun that he uses to shoot a wild tapir that had startled Williams.

A son of the hidden village's chief is accidentally killed by a knife set in a trap just as Williams takes his photo.