Danny Cahill was a two-pack-a-day smoker, a habitual gambler, was deeply in debt and weighed well over 400 pounds. He was unhappy, and both he and his family were suffering.

As Danny began to realize the effect his choices and lack of discipline were having on the lives of his wife and kids, he turned to God and asked for help. That night Joyce spoke at the church Danny attends. See what Joyce shared that changed Danny's life forever and how it inspired him to become NBC's "Biggest Loser."