Matt Iseman

Top 100 finishers from the regional finals tackle the ultimate challenge--a four stage course modeled after the famed Mount Midoriyama in Japan. The remaining competitors take on Stage 2 which includes the Double Salmon Ladder and five other obstacles entirely over water. Then, only the competitors skilled enough to conquer all obstacles in Stage 2 and Stage 3 will move onto the final Stage 4, a breathtaking 65-foot rope climb. Comedian Matt Iseman and Olympic gold medalist Jonny Moseley host, and Angela Sun reports from the sidelines as the athletes continue in their quest for the 500,000 dollar cash prize and the chance to be crowned the first American Ninja Warrior.

As Stage 1 comes to a close, eighteen challengers attempt to clear eight grueling obstacles including the Step Slider, Giant Swing and the Spinning Bridge. See which competitors are tough enough to move on to Stage 2 and become the first "American Ninja Warrior."

Competitors continue to take on Stage 1 of the punishing obstacle course in Las Vegas which includes the Jumping Spider, Half Pipe Attack and the Spinning Bridge. Only the athletes skilled enough to conquer all eight obstacles will move on to Stage 2 of the World's Most Difficult Obstacle Course.

From Maine to Miami and Arizona to Alaska, tons of competitors traveled across the states to Las Vegas to take on Stage 1 of the World's Most Difficult Obstacle Course. The finals continue as fan favorites and newbies fair the course, including Harlem Globetrotter Bull Bullard, fisherman Jesse Villarreal and youth minister Johnathan Morin.