Wolverine: Old Man Logan by Mark Millar

Fifty years in the future, America is a wasteland ruled by despotic super villain fiefdoms. Since our heroes fell, what happened to Wolverine has remained a mystery – in his place stands an old man, named Logan. Though content just to care for his family, when his new life is threatened, Logan must travel across this strange new America on a mission to secure his future and rediscover his past. Collecting Wolverine Vol. 3 66-72 and Giant-Size Old Man Logan 1