Surprising virtually no one, Netflix announced it has renewed its acclaimed summer drama "Stranger Things" for a second season. The series will return with nine new episodes in 2017.

Set in a small Indiana town in 1983, the first season follows the investigation of the disappearance of a 12-year-old boy, which reveals a series of extraordinary mysteries involving secret government experiments, supernatural forces and an unusual little girl.

Although the announcement and accompanying teaser trailer are light on details, executive producers Matt Duffer and Ross Duffer revealed to Entertainment Weekly the James Cameron-inspired Season 2 will see the return of several characters, including Finn Wolfhard's Mike, Winona Ryder's Joyce and Gaten Matarazzo's Dustin. However, the inclusion of Eleven will be left "up in the air."

Perhaps most interestingly, the second season will also delve further into the Upside Down, the series' alternate dimension.

“We kinda just peeled back the curtain and revealed a tiny bit of the Upside Down. So we definitely want to explore a little bit more," Matt Duffer tells EW. "There’s a lot we don’t know about the Upside Down at the end of Season 1.”