Left to right: Gaten Matarazzo as Dustin Henderson, Finn Wolfhard as Mike Wheeler, Caleb McLaughlin as Lucas Sinclair, and Noah Schnapp as Will Byers in season five of 'Stranger Things.' Courtesy of Netflix Logo text Are you feeling upside down trying to remember everything that unfolded in the wild first four seasons of Stranger Things? If yes, same. As the highly anticipated final season of the hit Netflix series approaches, there's quite a lot to remember leading up to this fifth season - like Will's disappearance, all the deaths and sacrifices (Barb, Billy, Eddie, Bob Newby and Dr.