In the 853rd Century the original Superman still lives, but has spent over fifteen thousand years in a self-imposed exile in his Fortress of Solitude in the heart of our sun. The galaxy is protected by the Justice Legions, which trace their descent from the 20th Century Justice League and the 31st Century Legion of Super-Heroes, among others. Justice Legion Alpha, which protects the solar system, includes future analogues of Superman, Wonder Woman, Hourman, Starman, Aquaman, The Flash, Captain Marvel and Batman.