This Utah teen is a star on ‘American Ninja Warrior’ right now. She’s also serving a Latter-day Saint mission

When 19-year-old Anna McArthur tackled a difficult obstacle on the July 20 episode, co-host Akbar Gbaja-Biamila excitedly declared: "She’s out here on a mission!" Those words, spoken last fall during filming, now have a double-meaning.