The Alternateville Horror

S4, E8: The Sliders land in world that seems idyllic -- until black clouds form and people scramble for cover. The Sliders soon learn why: the rain is acid rain. They take shelter in the Chandler Hotel, but are alarmed to see guests rushing out to brave the rain, rather than spend a night there. The overly-friendly clerk, Kelly, gladly checks the Sliders into the Presidential suite at a discount price; it seems the hotel has a hard time keeping rooms booked...