John Carter discovers that a First Born knows the secret of the Temple of the Sun and he and the Holy Hekkador Matai Shang want to rescue the Holy Thern's daughter, who is imprisoned with Dejah Thoris and another Barsoomian princess, Thuvia of Ptarth. John Carter follows them in the hope to liberate his beloved wife. His antagonists flee to the north, taking the three women along. Thereafter John Carter follows them untiring into the north polar regions...