Ninjas take on six challenging obstacles, including two new ones: Walk the Plank and Spring Forward; in a new twist to the qualifying rounds, the two fastest finishers take on the Power Tower for a chance to advance straight to the National Finals.

Last season's "last ninja standing," Drew Drechsel, and former New England Patriot Tyrone Poole are among the notable competitors who will face Atlanta's challenging obstacles, including Off the Hook and Ferris Wheel, which are both new this year.

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The competition heads to Seattle/Tacoma for the first time, as Jessie Graff, Meagan Martin, Lance "Cowboy Ninja" Pekus, Sean Bryan and more competitors face up to six challenging obstacles, including the new Lunatic Ledges and Barrel Roll.

Competitors, including Najee Richardson, Joe Moravsky, Allyssa Beird, Captain NBC Jamie Rahn, Chris Wilczewski, face up to six challenging obstacles that include Dangerous Curves and Hazard Cones, which are new to the course this year.

In the final city qualifying round, competitors including Jesse Labreck, Grant McCartney, Ethan Swanson, Michelle Warnky, Mike Bernardo, 98 Degrees band member Drew Lachey and more face up to six challenging obstacles, including the new Sling Shot.

Competitors including Flip Rodriguez and Adam Rayl face up to 10 obstacles; in a new twist to the City Finals, the two fastest finishers take on the Power Tower for a chance at a safety pass, which provides a second chance at the National Finals.

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Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Sorry we have no overview for this episode! Help us to improve our docs.

Iconic obstacles get supersized as the best competitors face off in the high-octane Skills Competition, featuring the Big Dipper, Fearsome Ferris Wheel and Striding Steps; plus, three all-star teams compete in a competition relay race.