Action Comics #823 2005

Action Comics #823, released in 2005, features the conclusion of the "Repo-Man" story. Superman and Superboy struggle against the powerful, Gog-empowered Repo-Man. Krypto the Superdog intervenes, saving them from defeat. A key moment for collectors is Superman's sudden appearance of graying temples, hinting at accelerated aging. The issue also includes an interlude with Doomsday and a subplot where Jimmy Olsen discovers a defeated Martian Manhunter.