Dr. Oz sits down with former Genesis star Peter Gabriel about the fight to save his wife's life, after she was told her melon-sized tumors were incurable. Meabh was diagnosed with an aggressive form of non-Hodgkin's lymphoma 18 months ago, and underwent crippling chemotherapy. After being told there was nothing more that could be done, Peter refused to listen, and continued to search for answers. In an intimate interview, Peter reveals the treatment that cured his wife, along with the doctors who urge cancer patients to never give up hope.