X-Men: Apocalypse Official Trailer Breakdown - 36 Things You Need To See

11. Vault Escape

The teaser showed a quick shot of several mutants trapped in some form of jail, something that hasn't been seen or even alluded to since. We get a bit more here. In fact, we get resolution; the captives are going to be broken out. Where this fits in I genuinely have no idea, although given the green lighting and characters involved I'd bet it's probably the holding cell for those in the underground mutant fights.