Netflix on Sunday released the first teaser for Stranger Things 2, which you can watch above. The new season is scheduled to hit the service on Halloween.

A few things:

• The Upside Down seems to be invading the small town of Hawkins, Indiana.
• That first shot appears to confirm the return of Eleven.
• What the hell is that huge monster? Is Will just having a nightmare?
• Who is observing Will in the hospital?
• What is Jim Hopper up to?