Two OSI scientists disappear while looking for radioactive ore in sacred Apache territory. Steve discovers that Iron Fist, the tribe's medicine man, has trapped the two men in a cave, in which they will die if not released soon. The medicine man fears that the scientists will tell the tribe of the value of the ore, thus ruining his plans to sell the ore for his own profit. Steve overcomes Iron Fist's opposition, befriends a young girl, successfully completes a number of Native American rituals, and then enters the sacred land.