MILES MORALES and the rest of the heroes of the ULTIMATE U face final extinction. As the end of their world becomes inevitable, will the heroes' heartbreaking sacrifices make any difference? The dramatic end of an era begins here!

MILES MORALES and the rest of the heroes of the ULTIMATE U face final extinction. As the end of their world becomes inevitable, will the heroes' heartbreaking sacrifices make any difference? The dramatic end of an era begins here!