Apocalypse plans to turn all humans with the dormant X-gene into mutants, while killing those who aren't strong enough. He has turned Magneto, Professor X, Storm, and Mystique into his Four Horsemen, and has covered the world with a network of energy pyramids to stage his plan.
Tropes included:
- Armor-Piercing Question: "You're not coming back, are you?"
- Clothing Damage: Apocalypse’s Four Horsemen (Professor X, Magneto, Mystique, and Storm) all have this with Mystique having the least and Xavier having the most.
- Darkest Hour: As the Horsemen rip apart of the new Sentinels, Nick Fury says he's out of options except for the X-Men.
- The End of the World as We Know It: Apocalypse's plan is to trigger the dormant X-genes in the human population. Some will become mutants, but countless more will die.
- Gondor Calls for Aid: Wolverine has the team call up every single mutant he can think of to help fight Apocalypse and his Horsemen. Spyke, Angel, Havok, Scarlet Witch, and Colossus appear alongside various X-Men and New Mutants.
- Last Request: When Xavier tells her to stay with the team just in case, Jean realizes he doesn't expect to be coming back. Xavier tells her to be strong for everyone's sake.
- Not Quite Dead: "They're... alive?"
- Properly Paranoid: Wolverine anticipates that Fury's plan will not work out as easily as hoped.
- Refused the Call: The Brotherhood turn Kitty away, with only Wanda going after her.
- The Reveal: Those seemingly destroyed by Apocalypse were instead transformed into his Horsemen.
- Took a Level in Badass: The Horsemen's mutant abilities have been sufficiently advanced.
- Wham Shot: Apocalypse's Four Horsemen emerging.
- What the Hell, Hero?: Wolverine to Nick Fury over the Sentinel program being revived.
- Wide-Eyed Idealist: Xavier hopes to open a dialogue with Apocalypse, though he is fully aware he may not survive the experience.
