Pequenos Guerreiros Ninja

Qualifying rounds begin in Las Vegas on the world's most challenging obstacle course.

Qualifiers continue in Las Vegas with a special "How to Train Your Dragon" episode.

Qualifying rounds continue in Las Vegas on the world's most challenging obstacle course.

Qualifying rounds continue in Las Vegas on the world's most challenging obstacle course.

Qualifying rounds continue in Las Vegas on the world's most challenging obstacle course.

Qualifying rounds conclude in Las Vegas on the world's most challenging obstacle course.

The semifinals begin in Las Vegas where the ninjas will take on a longer course featuring 10 iconic obstacles from the past.

The semifinals continue in Las Vegas where the ninjas will take on a longer course featuring 10 iconic obstacles from the past.

The semifinals conclude in Las Vegas where the ninjas will take on a longer course featuring 10 iconic obstacles from the past.

The finals begin in Las Vegas as the remaining ninjas go head-to-head in side-by-side races.

The finals continue in Las Vegas as the remaining ninjas go head-to-head in side-by-side races.

The finals continue in Las Vegas with side-by-side races and a new bracket-style tournament.

The finals conclude in Las Vegas where the nation's top ninjas go head-to-head in high-stakes, side-by-side races.

Sixteen elite female ninjas compete with head-to-head races deciding this year's women's champion.