Watch Hot Tub Time Machine 2 (2015) HD Full Movie Free on solarmovie.do. Watch Hot Tub Time Machine 2 (2015) online free. When Lou's shot in the groin, Nick and Jacob drag him in the Hot Tub Time Machine to go back in time...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.