Bruce Buffer

A high-school biology teacher looks to become a successful mixed martial arts fighter in an effort to raise money to prevent extracurricular activities from being axed at his cash-strapped school.

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.

From the producers of 'Bowling for Columbine', 'Fahrenheit 9/11' and 'Generation Iron' comes 'The Hurt Business' which examines the rise of mixed martial arts fighting through the eyes of today's top stars.

After a tumultuous decade-long career filled with injuries and missed opportunities, 38-year-old UFC middleweight Michael Bisping finally got his due, and he plans to go out swinging.