Written by Brian Michael Bendis. Art by Mahmud A. Asrar. Cover by Sara Pichelli & Marte Gracia. Traveling to alternate universes seems to be a rite of passage for any young mutant calling themself an X-Man... And it looks like it's the All-New X-Men squad's turn to pass the test! But will it Ultimately be too much for the time-displaced youngsters? Guest starring MILES MORALES, this is a showdown you won't want to miss!