DURING THE HYDRA TAKEOVER, the Merc with a Mouth killed Agent Phil Coulson, Quake's mentor and close friend. Now, Quake plans to kill Deadpool - but not if the other Secret Warriors have anything to say about it! And when a dark enemy threatens Inferno's family, he'll have nowhere else to turn but to his teammates. Can he convince the band to get back together - or will Quake's revenge stand in the way? Plus: Mister Sinister turns his experimental talents on the Inhumans! He's plagued the X-Men for years, and now he'll try his sadistic evolutionary experiments on a new race! It's up to the Secret Warriors to stop him and save their fellow Inhumans. But what happens when their most fearsome warrior, Karnak, leaves to pursue his own agenda?