Fifty years ago the heroes of the Marvel Universe were massacred and as far as Old Man Logan is concerned, Wolverine died with them. During that final battle, something happened to Logan... something so traumatic that he hasn't popped his claws since. Now Logan lives out his days a shell of a man, his warrior spirit long since crushed by the horrible weight of the secret he carries with him. What happened? Finally, the darkest chapter in Logan's history can be told!