Pilot (S01E01)

Young genius Quinn Mallory discovers the means to traveling to parallel dimensions of Earth via a portal wormhole he creates in his basement laboratory. Quinn's physics teach, Professor Maximillian Arturo, and his friend Wade Wells visit Quinn at home, and together they decide to travel into the next dimension of Earth. When the threesome start up the wormhole's energy for the journey, the strength of it accidentally inhales Rembrandt Brown, a washed-up Rhythm & Blues singer en route to Candlestick Park in San Francisco to sing the National Anthem, who happens to drive by Quinn's house. The four "sliders" travel first to a San Francisco submerged under ice and then to a San Francisco ruled by the Soviets. After experiencing these dimensions of Earth, the sliders try to return to their original world, only to discover that they can't. (iTunes)