Synopsis: While vacationing in Norway, Dr. Don Blake is discovered spying on an invading force of Stone Men from Saturn. Blake manages to hide in a cave and, after entering a secret passage, finds a cane which, when tapped, turns him into Thor the Thunder God, and his cane into Mjolnir, Thor's hammer. He learns the uses of the hammer and finds that he now has super-strength and control over the weather. Meanwhile the Saturnians have been successful in warding off a NATO air force attack and are ready to begin conquering Earth. Thor attacks and counters their every move. Realizing they cannot beat Thor, they retreat and leave Earth. The military cannot find the one responsible for beating the aliens, only a crippled man, who certainly couldn't be the one.