The Korvac Saga
This is the “2001: A Space Odyssey” of “Avengers” comics; a futuristic computer technician gains god-like cosmic awareness (seriously) and travels backward in time to reshape the Earth into his vision of a utopia. The Avengers team-up with futuristic cosmic heroes — and probably the next team to get a movie — the Guardians of the Galaxy for a consciousness-expanding battle of life, death, rebirth and more death.
Recommended Reader: Infected with Avengers-Mania