Netflix’s new teaser for "Stranger Things" season 5 gives fans a glimpse of the final battle, with Eleven, the gang, and the Upside Down all returning.

A clip from season 5 shows some characters in Stranger Things moving through what looks like an underground bunker. This may imply that they are under government supervision after the situation spiraled out of control in the season 4 finale. It will be interesting to see how this development impacts the story in season 5.