"Chapter Six: The Spy" acts as the pivotal, high-stakes turning point for Stranger Things 2 , highlighting the Mind Flayer’s tactical intelligence through a hive mind that controls Will. The episode features major character developments, including the start of the Steve/Dustin friendship and Nancy and Jonathan's romantic breakthrough, while heavily referencing 1980s horror cinema. Read a detailed recap at Vulture . The Spy | Stranger Things Wiki | Fandom