Trapped in a Pharaoh's tomb for centuries, at last he is free… and nothing can stop him.

From deep within the tomb of the Egyptian pharaoh Tutankhamun, a sarcophagus is discovered and delivered to the California Institute of the Sciences, where X-rays reveal five diamond-like crystals hidden within the coffin. Technician Peter Sharpe steals the crystals, failing to notice that the powerful X-ray has revived a sinister green fungus. When the coffin is opened at a university press conference, the assembled reporters uncover more than they bargained for. The mummy has disappeared… for the Time Walker is alive again!