Netflix’s One Last Adventure: The Making of Stranger Things 5 was meant to be a deep dive into how the final season of Stranger Things came together. The two-hour documentary, released January 12, 2026, offers interviews, writers’ room footage, and a look at production challenges.
Instead of satisfying curiosity for those who had followed the show for almost a decade, the special has fuelled fresh outrage from fans already disappointed by the Season 5 finale, sparking debates across Reddit and X that the show’s creators let key elements slip and possibly leaned on questionable methods. Here’s why One Last Adventure is now at the centre of fan fire.
One of the most talked-about moments online comes from a brief shot in the documentary showing a laptop with multiple ChatGPT or AI-like tabs open while writers are working. Fans quickly interpreted this as evidence the Duffer Brothers may have used AI tools like ChatGPT in writing or developing the finale.
Despite one section of users pointing out that seeing a tab does not prove AI was involved in writing the script, the image sparked a debate, with many fans using it to explain what they felt was a rushed or incohesive final season.
Perhaps the most surprising behind-the-scenes admission in the doc is that filming on Season 5 began before the finale script was actually complete. Interviews show the Duffer Brothers confirming that the script for the climactic Episode 8, The Rightside Up, was still being refined as shooting started.
For some fans, this revelation explained the uneven pacing and unresolved elements they felt in the season, and it added to their frustration that a purported “making-of” special would highlight what looks like a chaotic creative process.
Another scene in the documentary reveals a writers’ room debate about whether iconic creatures like demogorgons should appear in the final battle against Vecna. Though the Duffers ultimately cited concerns about “demo fatigue” and chose to exclude them, many fans online felt this confirmed how much the storytelling had drifted from the series’ roots.
That decision has become a talking point, with critics suggesting it symbolised Stranger Things losing touch with the heart of what made earlier seasons beloved.
The documentary also includes a moment where Maya Hawke, who plays Robin, raises a continuity concern on set about her character’s relationship not being clearly established in earlier episodes, prompting discussion with director Shawn Levy.
While a thoughtful, creative discussion, fans seized on it as evidence that the show’s writers were overlooking key narrative details, and the clip circulated online as shorthand for the larger critique: that production was reactive rather than cohesive.
Even moments meant to show the cast’s emotional bond have been viewed differently by some fans. In the documentary, Millie Bobby Brown is seen getting emotional during the final table read, especially in a goodbye scene with David Harbour, highlighting Eleven and Hopper’s long history.
But online, some viewers didn’t see it as just a sweet farewell. Instead, they took it as a sign of unease around the finale, suggesting the documentary showed more nerves and doubt than a big creative victory.
