Quinn, Rembrandt, and Maggie slide to a San Francisco with deserted streets, empty buildings, and abandoned cars. Everyone's disappeared -- everyone except for a ragged, half-crazy Quinn double who's convinced that his failed antigravity invention has accidentally wiped out every other human being on this Earth.

When our Sliders discover that this Quinn's misfired experiment actually transported five billion people to a parallel world -- doubling its population and causing massive hardship and starvation -- they realize they must slide to that world and somehow attempt to reverse the process.

original airdate--June 29,1978    

music: "The Captain of Our Ship" by Danny Lux        

Timer Status--The timer now has the ability to accept coordinates independent of whether or not that timer has visited it.

Money Matters: No money needed on Empty World, but Rembrandt takes about $10,000 and a mint copy of Superman #1 in case money is needed down the road. Later in the episode, Rembrandt also shows a handful of gold coins as well. Alt-Quinn tosses Roberto $250 in silver to buy his help in getting to the power source.

"What if you found a portal to a parallel universe? What if you could slide into a thousand different worlds — where it's the same year, and you're the same person, but everything else is different? And what if you can't find your way home?"