In the year 2025 a huge aircraft rose from its moorings, bearing Julian 5th into one of the greatest series of adventures that ever befell a man. The goal of the ship was Mars, but Fate rule otherwise, and Julian was forced to land upon the moon, where he was captured by a queer race of creatures, half-human, half-animal-the Va-gas. The story tells how Julian met and won the Moon Maid and carried her back to earth. Subsequently a savage race of Moon Men invaded and conquered the earth. For years the Earth Men suffered under the rule of their conquerors. Gradually their efforts were rewarded, and they forced their enemies over the mountains to the narrow plain by the great western sea. Then a descendant of Julian 5th appeared and led the hosts in the last great battle that freed the earth of its conquerors. The story is full of colorful, weird and spectacular scenes and rapid and thrilling action.