Infinity - Jonathan Hickman

To save the world from greater dangers, the Avengers got bigger. When the oldest race in the universe marks Earth for destruction, its time for Captain America to think grander still. As the most powerful Avengers team ever assembled heads into space, an old enemy deems their home unprotected. Thanos, the Mad Titan, unleashes his forces on Earth in the latest chapter of his endless quest. Even a world without Avengers has its defenders, the Illuminati, a group already confronting another planet-ending crisis.