movie ending , crowd of people hearing trumpets in the sky

A teacher opens a time capsule that has been dug up at his son's elementary school; in it are some chilling predictions -- some that have already occurred and others that are about to -- that lead him to believe his family plays a role in the events that are about to unfold.

The American Southwest holds a dark legacy as the place where nuclear weapons were invented and built. Navajo people have long held this place sacred, and continue to fight for a future that transcends historical trauma. This is their story.