Season 14 of American Ninja Warrior returns with some of the most elite athletes in the country competing on the world's most difficult obstacle courses. ... <看更多>

Watch the entire first season of American Ninja Warrior: Ninja vs. Ninja at http://usanet.tv/2G3fCNV. Check out awful falls and epic fails from season one ... ... <看更多>

Season 14 of American Ninja Warrior returns with some of the most elite athletes in the country competing on the world's most difficult obstacle courses. ... <看更多>