The qualifying rounds begin in L.A. with ninjas from across the country taking on the world's most challenging obstacle course. Competitors as young as 15 return to take on veterans and will have a chance to face an even taller Mega Warped Wall.

The qualifying rounds continue in L.A., with ninjas from across the country taking on the world's most challenging obstacle course. New obstacle Kite Surfer makes its debut.

The qualifying rounds continue in L.A., with ninjas from across the country taking on the world's most challenging obstacle course. New obstacle "The Cubes" makes its debut.

The qualifying rounds continue in L.A. with ninjas from across the country taking on the world's most challenging obstacle course. Competitors as young as 15 return to take on veterans and will have a chance to face a taller Mega Warped Wall.

The qualifying rounds continue in L.A. with ninjas from across the country taking on the world's most challenging obstacle course. Competitors as young as 15 return to take on veterans and will have a chance to face a taller Mega Warped Wall.

The qualifying rounds continue in L.A. with ninjas from across the country taking on the world's most challenging obstacle course. Competitors as young as 15 return to take on veterans and will have a chance to face a taller Mega Warped Wall.

The qualifying rounds continue in L.A. with ninjas from across the country taking on the world's most challenging obstacle course. Competitors as young as 15 return to take on veterans and will have a chance to face a taller Mega Warped Wall.

The semifinals begin in Los Angeles where the competing ninjas face up to 6 challenging obstacles and race head-to-head for a spot in the national finals.

The semifinals continue in Los Angeles where the competing ninjas face up to 6 challenging obstacles and race head-to-head for a spot in the national finals.

The semifinals wrap up in Los Angeles where the competing ninjas face up to 6 challenging obstacles and race head-to-head for a spot in the national finals.

The National Finals begin in Las Vegas as the remaining competitors move on to Stage 1 for their chance to win million and become the next American Ninja Warrior.

The National Finals continue in Las Vegas as the remaining ninjas compete in Stage 1 for their chance to win million and become the next American Ninja Warrior.

The National Finals continue in Las Vegas as the remaining competitors move on to Stages 2 and 3 for their chance to win million and become the next American Ninja Warrior.

The National Finals conclude in Las Vegas as the remaining ninjas compete in Stage 3 and 4 and a million winner is crowned as the next American Ninja Warrior.

Ninja couples compete relay-style on an extreme obstacle course in teams of two with one being crowned the next American Ninja Warrior Couples Champion.