Netflix has set the premiere date and released a trailer for its previously unannounced documentary that followed the making of the final season of “Stranger Things,” directed by Martina Radwan. “One Last Adventure: The Making of Stranger Things 5” will drop on Jan.

The documentary will start streaming on January 12 and promises to take viewers inside the making of the show’s last season, which marked the end of a decade-long journey for the cast and creators.