Some Nonsense

I'm given 4 codes, to be used on a computer, and told to memorize them. Then they leave. My memory isn't the best though, so I write down 3 and only remember one.

A man comes and kidnaps me, demanding I give him the codes. I don't. Then the setting changes so it didn't matter.

I'm with two friends inside of an enormous and dimly lit building, it's like a mall if part of a city had been built inside of it.

We hide from cops inside of a fancy looking bathroom. The two of them try climbing into a vent in the ceiling, but appear in the same room. (?)

Then I'm in the middle of a corn field, inside one of those single-room schools. The classroom is being led by an evil old woman, her students are several different ages.

I have to write an essay. For some reason, this is supposed to be important. A small blonde kid with some problem harasses me the entire time. The evil teacher offers to stop it, but if I accept he's going to literally die later.

Time runs out. I haven't written a damn thing.

I'm back in the mall, still attending school, but more normal this time. It's the beginning of the school year, my classes are on a piece of paper. I sit in a room full of freshmen, before eventually talking to one and realizing I'm in the wrong class.

I wander around the mall before finding a dimly lit room full of seniors. The seniors aren't actually doing anything, just relaxing and drinking.

Later I'm in a place where the sky is a foggy blue. Giant semi trucks transport passengers down giant highways. I travel in one with a group of passengers, eventually we reach the end of the world.