The all-star heroes of Krakoa are here to save the planet! Things might be complicated between the new mutant nation and the rest of the world, but it's simple to the X-Men: You do what's right, you protect those who need protecting and you save the world we all share. Cyclops, Marvel Girl, Sunfire, Rogue, Wolverine, Synch and Polaris are the chosen champions of mutantkind, and they will not shrink from any battle. From the obsessed High Evolutionary to the bizarre Cordyceps Jones, from Orchis' Dr. Stasis to the horrifying Headless Horseman, the X-Men will face them head-on! But who is the new mutant hero Captain Krakoa? And who will be elected to the A team in the Hellfire Galas? The X-Men clash with the Eternals, the Children of the Vault, M.O.D.O.K. and more - while things get cosmic as the X-Men go planet-size! But when Orchis strikes, who will be left to halt the Fall of X? Collecting X-MEN (2021) #1-34 and ANNUAL (2022) #1, PLANET-SIZE X-MEN #1, X-MEN: HELLFIRE GALA (2022) #1, X-MEN: HELLFIRE GALA (2023) #1 and X-MEN UNLIMITED: X-MEN GREEN #1-2.