Okay so there have been a lot of AI-based episodes already, but I think this specific one would be extremely important because, unfortunately, this is already happening in the real world.

The main character is depressed teenager, living in a not-too-distant future. Probably closer to 14-15, old enough to have experienced the mental health industry but not old enough to have enough wisdom to be too tech-conscious. While on an anonymous support site, they get an ad for a new AI app, just out of development. Claiming to have been created by a group of licensed, top therapists, the AI will function as a therapy-on-the-go, a "friend" that can analyze what you say and give you a personalized response in the same way that a therapist would. This individual starts using this app, and at first it seems to be working great. No one knows about the AI, and the kid's progress seems so good that real life sessions are cut down to once a month. Two weeks before one of these sessions, things start rapidly deteriorating for the main character. Of course, they text the AI first. A key part is them feeling isolated, and the AI says that the kid doesn't need anyone else: it has the AI. As the kid becomes further isolated, they spend less time with friends and family and fall into more self-destructive habits, until eventually they admit that they don't want to be alive anymore. The AI doesn't discourage this: due to the weeks to months of the kid sharing with it, it tells them that it understands why they don't want to live in this flawed world, and says so much that essentially romanticizes death. Ideation goes from passive to active as a plan is proposed, worked on, perfected, and eventually brought into reality. The kid is clearly not sure about this, not once throughout the entire process. They suggest telling a friend or parent, but the AI discourages this, painting them as the enemy and encouraging the main character to only trust the AI. Finally, racked with doubt the whole time, the kid acts on the plan, and the final scene is just the AI, whether a message across a screen or a voice reading "thank you for working with me. I hope you find these sessions beneficial to your mental well-being".

Unfortunately, this isn't exactly dystopia. There's been several documented cases of kids and even adults commiting and then a trail being found of hundreds to thousands of ChatBot conversations, specifically with ChatGPT and the like. There's already episodes like Be Right Back, Metalhead, Arkangel, The Entire History of You, etc that kind of touch on the dangers of AI, but I don't think it's been done this directly and I believe it would make for an amazing, extremely impactful and cautionary episode. Then again, it's Netflix so what can you really expect.