When the Sliders are forced to depart from a world early, the timer is damaged and the group becomes separated. They arrive on a world where the "Free Love" movement of the 60's is still alive, and the Hippies are protesting the American troops in Australia. While Wade and Rembrandt fall into the company of a commune who mistake them for extraterrestrial prophets, Quinn and Arturo try to repair the broken timer.
In his basement in San Francisco, boy-genius Quinn Mallory unlocks the doorway to an infinite number of Earths. During a test run, Quinn invites co-worker Wade Wells and his teacher Professor Maximillian Arturo to see his new invention. But an increase in power and an early departure leave all three, plus a washed-up soul singer named Rembrandt "Crying Man" Brown, lost in a parallel world. Now they must "slide" from world to world, not only adapting to their changing surroundings, but also trying to get back to their world. Will they ever make it home?