Dr. Phil speaks with the woman behind a viral social media video that has been viewed nearly 3 million times. Brittanie says her perfect marriage fell apart the day U.S. Marshals came to her home, held her at gunpoint, and arrested her loving husband of 10 years. After his arrest, Brittanie says she learned her husband, and father of her two children, had been hiding a deep, dark secret -- he was eventually convicted of multiple sex crimes. Brittanie claims from the moment her husband was arrested, she uncovered even more troubling details of her husband's life, including a secret affair with a teenage girl. Find out what Brittanie says this teenage girl told her about her husband, and what Brittanie claims her husband has written to her from behind bars. Plus, Dr. Phil speaks with Kristin, who appeared on Dr. Phil last season, worried her 15-year-old son, Robbie, was a pedophile. Find out what's happened since the appearance and how Kristin has used her experience to help others.