How to let non-gamers experience Bioshock

Sorry if this violates any Reddit rules, I just want to help my brother

My little brother (age 13) just beat Infinite, and when he tried to explain the mindfuck he just endured to my parents, they acted like he was crazy for thinking that much into a "silly game".

Is there anywhere he can find a video or explanation of the storyline so non-gamers can appreciate the story-telling?