Stranger Things is an American sci-fi horror series set in the 1980s in the fictional town of Hawkins, Indiana, beginning with the mysterious disappearance of a boy named Will Byers. The show explores the experiences of a group of children and their encounters with supernatural forces and the secretive Hawkins Laboratory, expanding its narrative across multiple seasons, including a fifth season currently in development. Key characters include Eleven, Mike, Dustin, and Lucas, each with their unique storylines and ongoing challenges.