"The odds of success are literally less than one-tenth of one percent...They spend their lives getting ready for this...and it's amazing to watch them improve and grow and to see them conquer not only the course but themselves."

While the contestants attempt to conquer the course, the hosts will gladly sit back and them do the action while they commentate. "I will say...that makes me really glad to be talking about it and not having to do it," Iseman said.

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American Ninja Warrior airs Mondays on NBC and Sundays and Tuesdays on G4 at 9 p.m.

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