Exclusive Video: 'American Ninja Warrior' Returns!

An all-new season of American Ninja Warrior -- TV's most demanding reality competition -- is about to launch and ETonline an exclusive first look!

The action kicks off with qualifying rounds that put this year's contestants through the most challenging obstacle course in the show's history. Upping the ante this season are a series of new obstacles including the Frame Slider, Domino Hill, Chain Swing and Flying Nun Chucks.

Check out your first look at the amazing feats of physical strength, and bone-crushing falls, that will be on full display beginning June 30 at 9 p.m. on G4 and July 1 at 8 p.m. on NBC!