We see glimpses of some of season two's new characters as well, including Goonies star Sean Astin's Bob Newby, a love interest for Joyce, Sadie Sink's Max, who will befriend the young stars, and Dacre Montgomery's Billy.
The plot of Season 2-sorry, Stranger Things 2-focuses on the aftermath of Will Byers' (Noah Schnapp) rescue from the mysterious "Upside Down".
Stranger Things season 2 will be premiering October 27 on Netflix. But there was one last trailer hidden up Netflix's sleeves showing us more Eleven and a better look at what is going on with Will. Find more on the show right here if interested.
If you thought things were intense the first time around in Hawkins, IN, just wait until you see what the Duffer brothers have in store for the sequel.
This new trailer is pretty special, as it sets up a lot of where the gang and the grown-ups in town are heading plot-wise, without giving too much away in terms of spoilers.
As it appeared in the trailer, fans were taken aback by how big the monster appears in the Upside Down, however, look closely, and it appears elsewhere.
Stranger Things is exclusive to Netflix.