Julian Epworth the head of secret service for Atlantic Pacific Airlines and his co-pilot Billy pursue a huge sky pirate zeppelin about to steal 1 million dollars in gold. A fast paced ultra modern sci-fi adventure: planes being shot out of the sky, air pirates in liquid fueled planes, a mad scientists Herman Toplinsky scheming to colonize the moon is the leader of the sky jackers. Toplinsky has captured Julian, Billy and stowaway Joan, Julian"s sister, they are all off to the Moon, only to be greeted by an army of mammoth cricket-shaped creatures in military formation, large as a man, with six legs and two sharp antennas, holding steel pointed lances. Riding on top of the cricket creatures are men-shaped humps, small bodies with legs and arms, and an enormous knotty projection for their heads, seeing through large wide eyes, and this is only the beginning.