John Carter has freed Mars from Issus, the false goddess whose tyranny once ruled the entire planet... but at a great personal cost. Dejah Thoris, his beloved princess, was taken by Matai Shang, a renegade priest determined to avenge the planet's shattered religion. Activating a doomsday device to destroy the fragile Martian atmosphere, Shang flees into the unknown regions of the north. Carter, aided by his son Carthoris and trusted alien pet Woola,...