For years, the X-Men have fought to avert a nightmarish future in which robotic Sentinels herd mutants into camps - or kill them on sight. But no matter what they do, that future seems to loom ever closer. Now, the classic tales featuring this dystopian alternate timeline are collected in one oversized volume! Kate Pryde journeys desperately through time to prevent Senator Kelly's assassination! Franklin Richards flees to the present, pursued by the hound-master Ahab! And Excalibur ventures into the future in a last-ditch attempt to defeat the Sentinels! Plus: prequels starring Wolverine and the Hulk! The future is now! Collecting X-MEN (1963) #141, UNCANNY X-MEN (1963) #142, X-MEN ANNUAL (1970) #14, EXCALIBUR (1988) #52 and #66-67, and WOLVERINE: DAYS OF FUTURE PAST #1-3; and material from FANTASTIC FOUR ANNUAL #23, NEW MUTANTS ANNUAL #6, X-FACTOR ANNUAL #5 and HULK: BROKEN WORLDS #2.