Season 17 of “American Ninja Warrior” returns, bringing together the country’s most elite athletes to conquer the world’s most challenging obstacle courses. Matt Iseman and Akbar Gbajabiamila are back, along with co-host Zuri Hall, to call the action as the ninjas take on the intense competition. The athletes head to Las Vegas for the Qualifiers and Semifinals, culminating in the National Finals where the fastest ninjas in the country will face a high-stakes course in side-by-side and head-to-head races. In a new bracket-style tournament, one ultimate champion will walk away with the grand prize and the crown of American Ninja Warrior.