When chain gang prisoners attack their guards, some of the hardened criminals escape Brazil's infamous Anchieta Prison amidst all the pick-ax carnage. The government dispatches a machine-gun squad to round up the fugitives.

An escaped prisoner flees to the South American jungle, where he must survive not only wild animals and disease but also a ferocious Indian tribe.

Four adventurers descend to the bottom of the sea. When their surface tether snaps, they find themselves marooned in a network of underwater caverns.

Resurrected by his grandson, a diabolical scientist with an unquenchable thirst for blood goes on a rampage. (A revision of the Mexican horror film LA MARCA DEL MUERTE, considerably edited and with 20 minutes of new American-made footage.)

A scientist seeking loot of the Nile regresses a woman to her past incarnation, a princess in ancient Egypt. (Edited from the Mexican horror film LA MOMIA AZTECA, and follows its general plot but with 36 minutes of new, American-made footage and English narration in lieu of dubbed dialogue for the original footage.)

A scientist experimenting with past lives finds a reincarnated Aztec who can lead him to lost treasure—and to a creature that should remain lost. (Composed of footage from two unrelated Mexican horror films, LA CASA DEL TERROR and LA MOMIA AZTECA, plus new American-made footage.)

Hands sculpted in stone, hidden in the niches of an ancient house, are regarded as sources of a curse by the present inhabitant, a country gambling addict. Indeed, he goes to an early grave after experiencing bankruptcy. The house passes to another family, one of whose sons becomes obsessed with the hands. (A cross-editing of principal material from two Chilean films, LA CASA ESTA VACIA and LA DAMA DE LA MUERTE, with the addition of new American-made footage, to create a single story.)