American Ninja Warrior Junior Season 1 - Promo Trailer HD - American Ninja Warrior Junior is streaming September 9th on Peacock with new episodes every Thursday!

Synopsis: American Ninja Warrior Junior is back and more extra than ever. This season, the series is taking the nation’s top junior athletes and putting them on the world’s most iconic course to compete on some of the most challenging obstacles yet. They’ll put their mental and physical strength to the test as they go head-to-head in extra competitive, extra inspiring and extra fun races. These junior athletes will bring their best ninja skills, indomitable spirits and fearless attitudes to the course but only three junior athletes will become the next American Ninja Warrior Junior champions.