Swords Against the Moon Men

In 2076 AD, Earth has been conquered and humanity brutally enslaved under the cruel tyranny of the Kalkar invaders whose evil was spawned from Va-nah, the Moon's hollow interior. Julian 7th, descendant of the great hero who led the first expedition to Va-nah and nearly defeated the Kalkars-receives a mysterious transmission from the planet Barsoom. The desperate plea from the Red Planet swiftly hurls Julian upon a lonely quest into the heart of Va-nah where he teams up with an U-ga princess...