Hot Tub Time Machine (2010) 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. - IMDb Hot Tub Time Machine 2 (2015) When Lou's shot in the groin, Nick and Jacob drag him in the Hot Tub Time Machine to go back in time and save Lou. The three end up 10 years in the future, where they need to go to find the shooter. -IMDb