It's been practically four months since we last got a full glimpse at an X-Men: Days of the Future Past trailer, but finally--a new teaser has arrived! Released this morning, the clip sets the scene about what's about to go down in the latest Marvel installement. The characters are on the edge of extinction, and in order to survive, they have to join forces with their past selves in order to fight for the future. Sound intense? Yeah, it is. Think Jennifer Lawrence's Mystique jumping out of windows, plus sneak peeks at other cast members like Hugh Jackman, Halle Berry, Michael Fassbender, Ian McKellen, and about a million other A-list stars. Whether or not you're familiar with the story, this is a trailer that will give you goosebumps. Watch it below!