https://www.youtube.com/watch?v=bBMajXwi6Cs

Apple TV+ / YouTube:

In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette (Rebecca Ferguson) starts to uncover shocking secrets and the truth about the silo.

Getting serious Snowpiercer vibes off of this. Hell of a cast, though. Apple TV+ keeps bringing out bangers.