This is a new video from ScreenCrush that lists everything you need to know before you watch Stranger Things season 2. This video catches you back up on the events of season 1, without re-watching the entire season. The new season will premiere on Netflix on the October 27, 2017. Finn Wolfhard, Millie Bobby Brown, Gaten Matarazzo, Caleb McLaughlin, Natalia Dyer, and Charlie Heaton are confirmed to return this season. They will be joined by Paul Reiser, Brett Gelman, Linnea Berthelsen, Dacre Montgomery, Will Chase, Rob Morgan, and Sadie Sink.
"It's 1984 and the citizens of Hawkins, Indiana, are still reeling from the horrors of the demagorgon and the secrets of Hawkins Lab. Will Byers has been rescued from the Upside Down, but a bigger, sinister entity still threatens those who survived."