When a retired physician performs a miraculous feat that catches the attention of two curious medical students, their attempts to discover the secret behind the doctor's unique abilities yields a horrifying discovery. A small boy has become trapped beneath a five-ton tractor. Though the child faces almost certain death, his life is mercifully spared when elderly doctor Daniel Green (Bill Cobbs) somehow manages to lift the massive vehicle off of the boy with ease. How could a mere mortal accomplish such an amazing feat? Realizing that it would take much more than mere adrenaline to move such a foreboding piece of farm equipment, two medical students who happened to be passing through town at the time of the accident travel to Dr. Green's isolated farmhouse to speak with the celebrated hero firsthand. It seems that as the reclusive doctor advanced in years, his fear of death drove him on a desperate search for the fountain of youth. Despite the fact that he was successful in unlocking the key to immortality, Dr. Green's remarkable discovery has come at a horrifying cost. Now, as night falls over the countryside, these two curious medical students are about to discover just how unwise it can be to meddle with Mother Nature.