After a strange turn of events at the airport, Cody and Rachel MacLeod, along with their companions, must travel back to San Antonio. But danger is lurking in the big city. The Black Storm has unleashed the Sliders - a terrifying new killing machine designed to wipe out the remaining human population. The Sliders aren't the worst thing waiting for them in San Antonio. But Rachel's powers are getting stronger. What's so special about this one girl? Is she really the last hope for the human race? A day of reckoning awaits. The truth about the Black Storm is coming at last. What is it? Why did it come? And who sent it?