The finals begin in Las Vegas as the remaining ninjas go head-to-head in side-by-side races with the fastest advancing in the competition; athletes face six iconic obstacles including Shrinking Steps, Swinging Frames and the legendary Salmon Ladder.

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In the last night of the Las Vegas finals, competitors tackle obstacles that include Psycho Chain and Area 51.

Sean Bryan, Drew Drechsel, Joe Moravsky and Najee Richardson represent Team USA against top athletes from Asia, Europe and Latin America in a battle for worldwide ninja domination.

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 will face the Salmon Ladder, Hourglass Drop, Elevator Climb and new obstacle Spinball Wizard; veteran ninjas Kacy Catanzaro, Daniel Gil and Brent Steffensen return.

The top 30 competitors from the Cleveland city qualifier compete on one of the the world's most challenging obstacle courses.

The season's top competitors compete in the national finals in Las Vegas.

The top 30 competitors from Kansas City, Mo., vie for a chance to compete in the national finals.

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.

Qualifying rounds continue in Las Vegas on the world's most challenging obstacle course; the top 20 athletes of the night advance to the semifinals.

The finals continue in Las Vegas, Nevada, where the remaining finalists take on Stage 1. Those that finish move on to Stage 2.

Kansas City, Missouri is the next stop for competitors to give it their all on the obstacle course. Competitors face 6 challenging obstacles in the city qualifier, including 3 new ones: Hang Glider, Broken Pipes, and Crank It Up. Ninja veterans Lance Pekus, Brandon Mears, and Dan Polizzi return, while Olympic decathlete Jeremy Taiwo takes on the course for the first time.

The Mile High City hosts the final qualifying round where competitors tackle 3 challenging new obstacles: Bouncing Spider, Rail Runner, and Ninjago Roll. Denver features the return of Ninja veterans Jake Murray, Sam Sann, Meagan Martin, and Brian Arnold.

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.

Qualifying comes to Houston, Texas where competitors tackle 6 obstacles, including the brand new Tilting Slider, Cargo Crossing, and The Swinging Spikes. Returning veterans include Brent Steffensen and Sam Sann, along with season 6 breakout star and fan-favorite Kacy Catanzaro.

The top 30 competitors from the Houston Qualifier tackle the Finals course, which includes the Salmon Ladder, Walking Bar, Crazy Cliffhanger, and Invisible Ladder. Top competitors and fan-favorites Brent Steffensen, Sam Sann, and Daniel Gil.

Contestants tackle obstacles including the Salmon Ladder, Circuit Board, Elevator Climb and new obstacle Giant Cubes.

The top competitors from the Denver qualifiers compete one more time before the national finals in Las Vegas.

It's the final night of the National Finals, where the season's best Ninjas tackle the last stages of "Mount Midoriyama."

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.

Pittsburgh, PA's historic Carrie Furnace will host the fifth qualifying round where competitors tackle two new obstacles, the Snake Crossing and the Wind Chimes. Returning veterans include Michelle Warnky and "Captain NBC" Jamie Rahn, while Olympian and Pittsburgh local Brianne McLaughlin and Harlem Globetrotter Flip White will take a shot at the course, along with University of Pittsburgh "vampire" professor Joel Brady and Team USA members Joe Moravsky and Elet Hall.

The top 30 competitors from the Kansas City Qualifier tackle the Kansas City Finals course which includes such obstacles as the Salmon Ladder, Flying Shelf Grab, Body Prop, and Invisible Ladder.

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In the first Qualifying Round from Los Angeles, California, competitors must tackle 6 obstacles, including Cannonball Drop and Battering Ram, which are new this season. Ninja veterans Kevin Bull, Flip Rodriguez, and Grant McCartney return for another shot at completing the course.