"Watchmen created by Alan Moore and Dave Gibbons - Superman created by Jerry Siegel and Joe Shuster, by special arrangement with the Jerry Siegel family"

Part one: Brad Anderson, colorist ; Rob Leigh, letterer ; Amie Brockway-Metcalf, original issue backmatter design ; Gary Frank and Brad Anderson, collections cover artists.

Part one: "Originally published in single magazine form in DOOMSDAY CLOCK 1-6."--Title page verso.

"As the Doomsday Clock ticks toward midnight, the DC Universe will encounter with its greatest threat: Dr. Manhattan. But nothing is hidden from Manhattan, and the secrets of the past, present and future will leave ramifications on our heroes lives forever. Something is amiss in the DC Universe. Following the events of DC Universe: Rebirth and Batman/The Flash: The Button, Geoff Johns (Flashpoint, Justice League, DC Universe: Rebirth) and Gary Frank (Batman: Earth One, Shazam!, DC Universe: Rebirth) reunite to rewrite the past and future of the DC Universe in a story hailed as a masterpiece! Seven years after the events of Watchmen, Adrian Veidt has been exposed as the murderer of millions. Now a fugitive, he has come up with a new plan to save his once-adoring world: find Dr. Manhattan. Alongside a new Rorschach and the deadly Mime and Marionette, he arrives in the DC Universe and finds it on the brink of collapse. International tensions are running rampant with The Supermen Theory implicating the U.S. government in creating superhumans to maintain global dominance! But what is Dr. Manhattan doing in the DC Universe? And how is he related to the events of DC Universe: Rebirth and Batman/The Flash: The Button?"--,Provided by publisher.