I found this SMP called The Urb SMP and it is a kind of scripted Minecraft server that is about to start soon.
It sounds like the whole point is playing with a story and people who are really dedicated. They want players with a good mic and they expect you to follow the rules.
This is a Minecraft server called The Ruins SMP. It is a scripted multiplayer world that is all about story and roleplay.
The server is hosted by a player named ActualInfinite. It is inspired by the Unstable Universe and Unstable SMP so it tries to follow that kind of style with planned story moments.
Players on this server are meant to follow a script and help make a cool story together. It feels like a series you would watch on YouTube except you can also be part of it.
They have an official YouTube channel named ActualInfiniteMC where they post stuff from the server.
They are looking for new people to join through applications and they want people who are excited to help build a scripted Minecraft world.