Oprah talks about her controversial 1997 interview with Ellen DeGeneres, which at the time brought Oprah the most negative mail she had ever received. Through Ellen’s story and others, Oprah shares what she knows for sure about the power of truth in our lives and how it can set you free. Plus, Oprah remembers one of her favorite "Aha!" moments in ‘Oprah Show’ history. She also revisits the story of Jeannette Walls, an entertainment reporter and Park Avenue socialite who revealed the surprising truth about her family in her best-selling memoir The Glass Castle"