When does Stranger Things return?

Stranger Things is an American television series created by the Duffer Brothers for Netflix. Set in the 1980s, the series centers on the residents of the fictional small town of Hawkins, Indiana, as they are plagued by a hostile alternate dimension known as the Upside Down. The ensemble cast includes Winona Ryder, David Harbour, Finn Wolfhard, Millie Bobby Brown, Gaten Matarazzo, Caleb McLaughlin, Charlie Heaton, Matthew Modine, Dacre Montgomery, Sean Astin, Paul Reiser, Maya Hawke, Priah Ferguson, Brett Gelman, Jamie Campbell Bower, Eduardo Franco, Joseph Quinn, and Amybeth McNulty.