Comic Book Day 2020 (X-Men/Dark Ages) #1 (Dark Ages story). This is what the Watcher has been watching for. A danger older than the planet threatens everything. The age of technology is about to end - and for once, the heroes who have saved Earth time and again find themselves almost completely powerless in the face of it. X-Men and Avengers will assemble. Spider-people and the Fantastic Four will come together. Heroes for Hire will fight alongside Champions. But none of it will be enough. The lights are about to go out. The world outside our window...is about to end. And after darkness comes Apocalypse! Nothing can prepare you for an all-new saga of the Marvel Universe as you've never seen it before - from acclaimed talents Tom Taylor and Iban Coello!