Marshmello Runs Stage 1 at the Las Vegas National Finals - American Ninja Warrior 2018 (Exclusive)

ABOUT AMERICAN NINJA WARRIOR The action-packed series follows competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those who successfully complete the finals course in their designated region move on to the national finals round in Las Vegas, where they face a stunning four-stage course modeled after the famed Mt. Midoriyama course in Japan. The winner will take home a grand prize of $1 million.