Montoro Productions Ltd.

An eighteen-foot-tall grizzly bear terrorizes a state park, leaving Ranger Mike Kelly, photographer Allison Corwin, naturist Arthur Scott, and chopper pilot Don Stober to track down the beast. Meanwhile, the body count rises.

A battle for survival ensues after a group of hikers encounters a chemically imbalanced forest.

Juliet Mills plays a young pregnant woman in San Francisco who is going to have the devil's baby during her strange possession. Richard Johnson shows up to help her... but what does he really want?