The new Stranger Things documentary shows just how delayed creators Ross and Matt Duffer were when it came to finishing the series finale script. Netflix released the two-hour special One Last Adventure: The Making of Stranger Things 5 on Monday, January 12, where Matt and Ross, both 41, documented their writers' room trying to plan out the script for the final episode of the show. "The longer it goes, the more stories you have to tie up and the more character arcs you have to end. The more expectations there are with the audience," Matt said.