After the many death-defying battles and near-escapes of The Princess of Mars, John Carter is returned to earth against his will, only to be sent back to Mars yet again at the start of this sequel. Having been separated from his wife, the beautiful Dejah Thoris, for ten years, Carter will do anything to be reunited with her. Before that can happen, however, Carter must team up with his Martian ally Tars Tharkas to do battle against a wide array of enemies, including the terrifying Plant-Men and the deadly Pirates of Barsoom on their speeding aerial craft. Amidst all the thrilling sword-play and intrigue, Carter learns more about the ancient theological, racial and political divisions that have kept Mars in a state of near-permanent conflict for so many years.