On June 8, 1924, George Mallory and "Sandy" Irvine set out to stand on the roof of the world, where no one had stood before. They were last seen 800 feet shy of Everest's summit. A century later, we still don't know whether they achieved their goal. Irvine carried a Kodak camera with him to record their attempt, but it, along with his body, had never been found. Mark Synnott made his own ascent up the infamous North Face along with a filmmaker using drone technology higher than any had previously flown. His goal—to find Irvine's body, and the camera he carried that might have held a summit photo on its still-viable film. The Third Pole conveys the miracle of a mountain the world wants to own, and the first explorers who may have done so.