Qualifying rounds begin in San Antonio as the ninjas face four new obstacles plus the Warped Wall.

The qualifying rounds continue in San Antonio, where competitors as young as 15 take on seasoned veterans on the world's most challenging obstacle course; the new Piston Plunge obstacle makes its debut on the course that ends with the Warped Wall.

The qualifying rounds continue in San Antonio, where competitors as young as 15 take on seasoned veterans on the world's most challenging obstacle course; the new Kickboards obstacle makes its debut on the course that ends with the Warped Wall.

The qualifying rounds conclude in San Antonio with ninjas from across the country taking on the world's most challenging obstacle course; competitors as young as 15 take on seasoned veterans in this first round of competition from the Alamodome.

The semifinals begin in Los Angeles, where the competing ninjas face up to 10 challenging obstacles, including, for the first time, Kaleidoscope, Ghost Town and Spin Zone; the two fastest ninjas will face off on the Power Tower for a Safety Pass.

The semifinals continue in Los Angeles where the competing ninjas face up to 10 challenging obstacles, including new obstacles Hopscotch and Box Office; the two fastest ninjas will face off on the Power Tower for a Safety Pass.

The semifinals continue in Los Angeles, where competing ninjas will face up to 10 challenging obstacles, including new obstacles Over Under and Flipped Around; the two fastest ninjas will face off on the Power Tower for a Safety Pass.

The semifinals conclude in Los Angeles, where the competing ninjas will face up to 10 challenging obstacles; the two fastest ninjas will face off on the Power Tower for a Safety Pass going into the national finals.

The finals return to Las Vegas where the ninjas face up to eight super-sized obstacles in Stage 1; the ninjas must complete the course, including new obstacles Three Ring Circus and Tetherball, to advance to Stage 2 of the national finals.

The finals continue in Las Vegas, where the ninjas face super-sized obstacles in Stages 1 and 2 in timed runs; the ninjas who advance to Stage 2 must complete a six-obstacle course, including new obstacle Hornet's Nest, to advance to Stage 3.

The national finals conclude in Las Vegas as the remaining competitors move on to stages 3 and 4 for their chance to win $1 million and become the next American Ninja Warrior.

Ten ninja families compete relay-style on a six-obstacle course in teams consisting of three family members; the top four teams face off in a Power Tower tournament, but only one family will be crowned American Ninja Warrior Family Champions.