What happens when a game meets reality? What is real, what is a dream?
A crew of space salvagers stumble across what appears to be a genuine alien artefact. Connecting to the computers, the aliens pull both crews into an alternate universe of medieval battles. But is this just a computer game, or is there really a parallel Universe where these things exist? Is it going to be possible to return to the "real" Universe, or are they doomed to travel through an infinity of parallels forever?