At over 700 pounds, Brianne undertakes a weight-loss journey to save her own life; she faces an unexpected challenge to her fragile progress when her husband suffers a heart attack on a birthday she will never forget.

A college graduate with a once-promising career, Justin has eaten his life away to the point of never leaving the house for anything but food; only the help of Dr. Now's weight-loss program can restore his hopes of living a happy, productive life.