After she delivers her child in an ambulance, alien Eve is killed by a half-breed. Fortunately, Dr. Abbot scoops up the baby alien and escapes. In time, the baby grows into a gorgeous blonde named Sara and begins her quest to find a worthy mate. But Sara is also savage and leaves a trail of deaths in her wake. This carnage makes chemistry student Dean question whether to help her race or not.

Donner Pass has a well-known and macabre history – the place where George Donner and his party got stuck in the winter of 1846 and were forced to resort to cannibalism to keep from starving. But what if it wasn’t just history?