Sometime in World War II, German SS officers discover ancient ruins which contain stone gargoyles.
The crew of a bomber, the "Grey Ghost" flown by Major John Gustafson (Joe Penny) is attacked by the gargoyles and crashes.
She relates the story of a group of pagans that built a statue of their "horned king" deity, Vorthorn out of a mysterious 'bloodstone'.
Two of the aircrew, Porter and Nash, are captured by the German army and left tied up in the open to distract the gargoyles.
One of the fliers and a British soldier fly a German Heinkel He 111 bomber up to confront the Gargoyles, while the remaining airman and the village woman on the ground are also attacked.
All the other gargoyles also turn back into stone, just in the nick of time to save the woman and airman below in the ruins.