The fire challenge, the duct tape challenge, purple drank: Dr. Oz sounds the alarm on the dangerous online trends and social media pranks teens are trying. Montel Williams cautions parents about deadly stunts that can turn fatal, and one dad relives the day he lost his son to a cocktail of racing fuel and Mountain Dew. Plus, the man with the golden voice, Ted Williams, is back: the health crisis he finds out about on our stage.