First Lt. Nathan Flack, the 21st Communications Squadron flight commander, and his son, Titus, finish the Color Run during Nickelodeon’s Worldwide Day of Play at Patriot Park on Peterson Air Force Base, Colo., Sept. 26, 2015. The event included a healthy cooking challenge, inflatable obstacle courses, climbing wall, games, snacks and demonstrations from the Peterson Fire Station and Mobile Emergency Operations Center. (U.S. Air Force photo/Senior Airman Tiffany DeNault)