Watch Hot Tub Time Machine (2010) HD Full Movie Free on SolarMovie. Watch Hot Tub Time Machine (2010) online free. A malfunctioning time machine at a ski resort takes a man back to 1986 with his two friends and neph...A malfunctioning time machine at a ski resort takes a man back to 1986 with his two friends and nephew, where they must relive a fateful night and not change anything to make sure the nephew is born.