Almost every sovereign state in the Marvel Universe makes use of sanctioned superhumans to protect national interests and pursue a covert agenda. The United States has the Secret Avengers. The United Kingdom has MI13. And mutantkind has X-Force. Cable. Psylocke. Fantomex. Marrow. They are mutantkind's protectors, spies, assassins and torturers! But just what has driven each of them to join the most deadly incarnation of X-Force yet? And how has Marrow regained her mutant powers.and what does it have to do with X-Force's first target? Collecting: X-Force 1-6