Watch TKO: Total Knock Out

The season's top five contestants with the fastest times return to compete in an epic battle royale for the $100,000 grand prize.

An ex-pro bodyboarder, a motocross racer, a jewelry designer, a little league coach and a fitness buff take on the course.

A karate sensei, a pro parkour athlete, an obscure sports champion, a pro streetballer and a Muay Thai boxer take on the obstacle course.

An former Army reserve captian, a construction worker, a longshoreman, a mini-horse breeder and a youth basketball coach take on the obstacle course.

In one of the most competitive episodes of the season, an aspiring comic, a pro bull rider, a death racer, a professor and a soccer pro race through the course all eyeing the $50,000 prize.

A toy maker, a derby mom, a kickball champion, a cheerleader and an Army veteran compete for the $50,000 prize

Five champions of extraordinary sports, including an Olympic curling gold medalist, a competitive eater and a pro quidditch player, duke it out on the course.

Will a baseball coach step up to the plate and sweep the competition? Will a fashion designer pose a threat to the rest? Host Kevin Hart welcomes five new competitors who are pumped to tackle the course.

A group of trash-talking competitors take on the course, and the Philadelphia Eagles mascot, Swoop, stops by to surprise host Kevin Hart.

In an effort to finish the course with the fastest time and win the $50,000 prize, one contestant races through daunting obstacles while four other contestants man battle stations along the course, firing over-the-top projectiles in attempt to knock them off and slow them down.