In this novel Burroughs focuses on another a younger member of the family established by John Carter and Dejah Thoris, protagonists of the first three books in the series. The heroine this time is their daughter Tara, princess of Helium, whose hand is sought by the gallant Gahan, Jed (prince) of Gathol. Both Helium and Gathol are prominent Barsoomian city states.

Beginning with John Carter's return to Barsoom (Mars) after a ten year hiatus — separated from his wife Dejah Thoris, his unborn child, and the Red Martian people of the nation of Helium, whom he has adopted as his own — John Carter materializes in the one place on Barsoom from which nobody is allowed to depart: the Valley Dor, the Barsoomian heaven.

Through the treason of a handful of men, contact between Earth and the Moon had become a nightmare. The world became the tool of the Lunarians, whose plundering and cruelty reduced thieving nations to poverty stricken wastelands.The Moon Men is the astounding story of that tragedy, and of the exploits of Julian, the human who dared fight for freedom. It is the story, also of Red Hawk, Julian's descendant, the nomad who attempted to bring the struggle to its final desperate conclusion.

In the 25th century, as Julian XX, the fierce Red Hawk, he will lead humanity’s final battle against the alien invaders. A majestic adventure with political overtones & great science fiction. Book 3: The American people are now a nomadic horse nation, painted and feathered. Their chieftain is Julian—the Red Hawk—and he is planning the final defeat of the hated Kalkans after centuries of oppression.