"Stranger Things" returns for part one of its last hurrah on November 26. Part two drops on Christmas. And the official conclusion is on New Year’s Day.

Netflix has released the trailer for the fifth and final season of “Stranger Things.” Created by the Duffer Brothers, “ Stranger Things 5 ” picks up in the aftermath of Vecna leaving Max in a coma and spreading the Upside Down into Hawkins. At the end of the explosive trailer, Vecna arrives to go to war against the gang.

ET breaks down the first full trailer for 'Stranger Things' season 5 including, who's returning and how things pick up after season 4's explosive ending. Part one of 'Stranger Things' season 5 streams Nov.