Scientist Bruce Dickson is on an expedition to conquer Mt. Kalapathia when he gets caught in a blizzard and is separated from the rest of his party. Seeking shelter in a glowing cave, Bruce muses to himself that maybe the cave contains a deposit of radium. However, the cave turns out to be a tunnel which leads to a secret valley. Bruce travels through the tunnel and, upon discovering this wondrous valley, passes out! Waking, he is confronted by the beings that live in this place. They tell him that all is fine with him now, since they have operated on him with "electronic rays" because he was "not perfect." This perfection is the ability to become thin and pliable. The citizens of the hidden land tell Bruce to concentrate, and he too will be able to become "thin."

    The Council of Elders informs Bruce that he now must reside in the land of Kalahia and that he can never leave it. In very little time Bruce learns how to master the science of the Kalahians. Bruce tells the Council of Elders, with the aid Ollalla, the chief Elder’s daughter, that there is much evil in the outside world to be confronted. Bruce demonstrates this by taking one of the advanced "electronic television-telescopes" to peer upon an American city back in the United States, where the Elders can see for themselves that there is indeed much evil to be conquered.

    Once convinced, the Elders allow Bruce and Ollalla to leave Kalahia in a "stratoplane," a perpetual motion machine, which is built from the metal duragen, which will last a 100 years! The pair wing their way back to the U.S.A. just in time to stop a crime spree against taxi drivers who are being extorted for money. Using his flexible powers as the Thin Man, Bruce defeats these evil doers, and he and Ollalla swear to stop all forms of evil wherever they find it! Sadly however, they would have only this one recorded adventure.