Collects Thanos Imperative #1-6, Ignition, & Devastation one-shots. Dark forces of a rival universe where there is no death are pouring through to claim ours! Nova, the Silver Surfer, and more of the greatest cosmic champions line up to stop them, but it could be more than even they can handle. Luckily, they have a plan. It's a crazy plan. It's called...Thanos!