A documentary titled 'Stranger Things: One Last Adventure,' chronicling the making of the final season, will premiere on Netflix on January 12, 2026. The film offers behind-the-scenes footage, capturing intimate moments from the production of Season 5, including final table reads and cast reflections. It highlights the creative process, action sequences, and storytelling decisions behind the series' conclusion, emphasizing the camaraderie of the characters as they prepare for their final confrontation with the Upside Down.