Dan Slott presents the cosmic saga he has waited his entire career at Marvel Comics to tell! Before the empires of the Kree, Skrull, or Shi'ar... before the appearance of Galactus... before the birth of Asgard... there was the First War. Today, the greatest conflict ever to rage across the Multiverse reignites. This... is the Day of Reckoning! And all those who stand between all reality and revenge from the dawn of time are the heroes of Earth - and the mind of Mister Fantastic!

Starring the FF, She-Hulk, Jack of Hearts, the Unseen, the Silver Surfer, Thor, and everyone else in the Marvel Universe - but as oblivion approaches, will Doctor Doom be the hero all reality needs?

For the Multiverse to survive, the Watchers must all break their most sacred oath!

Collecting FANTASTIC FOUR: RECKONING WAR ALPHA, FANTASTIC FOUR (2018) #40-46, and RECKONING WAR: TRIAL OF THE WATCHER.