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.

Hot Tub Time Machine 2 (2015)

When Lou, who has become the “father of the Internet,” is shot by an unknown assailant, Jacob and Nick fire up the time machine again to save their friend.