Desperate times call for a darker team of X-Men! With mutantkind in extinction's crosshairs once more, Magneto leads a group of the deadliest that homo superior has to offer to fight for the fate of their species! Refusing to accept even one more mutant death, the most ruthless possessors of the X-gene on Earth -deadly warriors such as Sabretooth, Fantomex, Mystique and Psylocke -have banded together to proactively mow down their enemies.