The arrival of the original X-Men in the present sent shockwaves through the Marvel Universe, but we've only seen the effects on Earth, until now! When an alien race discovers that Jean Grey, host of the destructive Phoenix Force, is back on Earth, they decide to hold her accountable for the heinous acts of Dark Phoenix! Now it's up to the spacefaring Guardians of the Galaxy to help the all-new X-Men save Jean Grey from twisted intergalactic justice! A surprise ally from one character's past comes to help, but is that enough against the most powerful army in the Universe?