Watch American Ninja Warrior Online

G4 presents the biggest and most daring Ninja Warrior event in the network's history with the new series American Ninja Warrior. The series will hold open tryouts to find the top 10 American competitors from across the country and send them to Japan to tackle Sasuke, the world's most difficult and diabolical obstacle course. The American competitor who completes all four stages of Sasuke in the fastest time will be named the ultimate American Ninja Warrior.

Premiere Date: Dec/12/2009

Genre: Action, Family, Fitness, Talent

Most Recent Episodes

American Ninja Warrior season 9 episode 14

Season 9, Episode 14: Las Vegas - Finals Night 2

The "American Ninja Warrior" National Finals continue in Las Vegas, Nevada where the season's top competitors tackle a four-stage course. Ninja veterans Kacy Catanzaro, Jessie Graff, Najee Richardson and Sean Bryan are scheduled to com...

Air Date: Sep 11, 2017

American Ninja Warrior season 9 episode 15

Season 9, Episode 15: Las Vegas - Season Finale

It's the final night of the "American Ninja Warrior" National Finals, where the season's best Ninjas tackle the last stages of 'Mount Midoriyama'. Competitors who conquered Stage One move on to Stage Two, in hopes of adv...

Air Date: Sep 18, 2017

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American Ninja Warrior Casts

Akbar Gbajabiamila

Akbar Gbajabiamila

Host

Matt Iseman

 Matt Iseman

Host