How Many Days Until American Ninja Warrior — Season 18?

American Ninja Warrior is an upcoming action and sports TV show. You can watch it on NBC American Ninja Warrior is an action-packed series that follows competitors as they tackle a series of challenging obstacle courses in both qualifying and finals rounds across the country. Those that successfully complete a course in their designated region move on to the national finals round in Las Vegas, where they face a stunning four-stage course modeled after the famed Mt. Midoriyama in Japan. American Ninja Warrior Season 18 Premiere Date can be watched/streamed on NBC Details for this countdown kept up to date with thanks to