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.

As they enter their third year of medical school, a group of young students must prepare to decide what they intend to specialize in. Somehow, they must impress the Chief of Surgery while learning how to survive the life-and-death area of medicine and the complexity of their everyday lives.