La bataille finale pour Arrakis approche... Paul Atréides a accepté son rôle de leader des Fremen mais sait que son pouvoir sur eux ne tient qu'à un fil tandis que le baron Harkonnen prépare son neveu, Feyd-Rautha, à régner sur la planète désertique. Leurs destins à tous vont se heurter dans un final épique qui changera Arrakis – et l'univers – à jamais.

The final battle for Arrakis is swiftly approaching. Paul Atriedes has accepted his role as the leader of the Fremen but knows his power over them teeters on the brink--they will either take back their planet or lead a jihad that will consume the entire cosmos. Lady Jessica has become a Reverend Mother and must balance her support of her son with the expectations of the Bene Gesserit Order. Meanwhile, Baron Harkonnen has continued to groom his cunning nephew, Feyd-Rautha, to rule the desert planet. All their destinies collide in an epic finale that will change Arrakis--and the universe--forever.