The 29,035-foot giant known as Mount Everest tortures its challengers with life-threatening conditions such as 100 mph winds, the dramatic loss of oxygen, snowstorms, and deadly avalanches. Climbers of Everest are faced with incredible dangers, but for Sean Swarner the obstacles he overcame prior to his summiting make his story even more compelling.

Sean isn't just a cancer survivor; he is truly a medical marvel. He is the only person in the world ever to have been diagnosed with both Hodgkin's disease and Askin's sarcoma. He was diagnosed in the fourth and final stage of Hodgkin's...