Six girls are on their way to Las Vegas to sing in a TV competition, but when their car breaks down, their only choice is to walk to a town they see in the distance. Little do they know that this ghost town is the hideout of a gang of drug dealing bikers. The bikers hold the girls captive, and only one man can save them.

From deep within the tomb of the Egyptian pharaoh Tutankhamun, Professor Douglas McCadden ships the coffin of Ankh-Vanharis to the California Institute of Sciences where X-rays reveal five diamond-like crystals hidden within the coffin. Technician Peter Sharpe steals the crystals but doesn't notice that the powerful X-ray has revived a green fungus. When the coffin is opened at a university press conference, the reporters uncover more than they bargained for. The mummy has disappeared... and the Time Walker is alive again!