When Ash Williams was fighting Deadites aboard the International Space Station, the mechanical gauntlet he created during his first trip to 1300 AD became possessed. The hand scurried away from Ash and eventually found a copy of the Necronomicon that was onboard the station. The gauntlet touched the book, and began to grow a new Evil Ash. This new Evil Ash retained the memories of the original from 1300 AD.
After battling the original Ash for control over a satellite stored in the Space Station, Evil Ash began to slow down when the Necronomicon was ripped out of his chest. When the book was accidently released out into space, Evil Ash followed Ash out of the station to retrieve it before him. The "good" Ash got to the book first and opened a vortex in space, sucking the Evil Ash inside as the real Ash got away.