I recently got the MST3K Volume 7 and it had Hercules against the moon men. When it was over, the movie traumatized me! Apparently, the "moon men" will destroy a town known as Samar. So, in order to keep the town from being distressed, they had to sacrifice their "children" to these rock guys in the "mountain of death". The people against the sacrifices decided to hire Hercules to take care of the problem. The Queen of Samar, I forget her name, is an ally of the moon people and desperately wants to kill Hercules. Then all of this stuff with the cave trap and the capture of his allies and being captured himself. But then, as it couldn't get any worse, it happens! A 20 sandstorm sequence in which it just shows people falling on their faces!!! But at the end, the Queen gets killed, Hercules destroys the moon guys and they all not live happily ever after.
Review of Hercules Against the Moon Men
