X-Men: Days of Future Past

Days of Future Past is a classic storyline in the X-Men comic series that involves time travel and the battle against a dystopian future. In the story, the X-Men must prevent an event that leads to the creation of robotic Sentinels, which are designed to exterminate mutants. The storyline explores themes of fate, alternate realities, and the consequences of prejudice and fear. It became famous not only for its storyline but also for its adaptation into the X-Men: Days of Future Past movie in 2014.