Ninjas vs. Mother Nature. Inclement weather did not interfere this weekend with NBC's taping of a segment for the seventh season of American Ninja Warrior. Kansas City was host to one of five preliminary competitions that will air this summer. The extreme obstacle course was set up in front of Union Station. | KC Parks Instagram Photos

Ninjas vs. Mother Nature. Inclement weather did not interfere this weekend with NBC's taping of a segment for the seventh season of American Ninja Warrior. Kansas City was host to one of five preliminary competitions that will air this summer. The extreme obstacle course was set up in front of Union Station.