Poisoned by Knull, The Phoenix Force corrupted and finally fell into the great darkness. This spread a disease throughout the cosmos which killed billions of lives across the galaxy, leaving them to flee into Sol and inhabit Earth. The Avengers had fought off the darkness and it's armies for years, growing old. They decided to mentor their younger counterparts to aid in the fight against the living darkness, jointing teams such as the X-Men and organizations such as S.H.I.E.L.D to work together as a single unit.
Earth has become a war-zone, entering an age of apocalypse as heroes and villains fight for dominance over the entire planet. Will they put aside their petty wants and ally with one another? Or will the scourge remain victorious?