Kurt was a Nazi expeditioneer that traveled to the mopu lamasery in search of Shamba-La. However, when John arrived it was agreed that Kurt and the others would bring them back to Berlin. Like the other soldiers, he had been trapped in time for many years and still thought it was 1938.
Kurt was one of the two men attached to John on the belay rope when going down the mountain, the other one being Fritz. He was the first to age rapidly when they moved outside the magical properties of Shamba-La. His hair turned white and his voice aged. Fritz and the other Nazis soon followed. Due to their rapid aging, they could no longer support the rope and they fell to their deaths from the mountains.