To say Lyra is jealous of Twilight going to the human world is an understatement. She is so jealous that she decides to find her own way there. Using an ancient spell book, which she “borrowed”, she soon creates a portal to the human world.

Too bad it's not the same one Twilight was in with colorful people who look exactly like her friends. In fact, it looks more like ours.

Now after having her fun here. She decides that its time to go back home. But a group of snooty popular girls, an oppressive dean, and a corrupt student disciplinary committee prevent her from even getting near the return portal. In order to do this, she obtains the help of 3 genius slackers. With their help, she faces the dreaded challenge of surviving high school all over again, learning all kinds of human advantages, and hopefully finding her way back to Equestria.

If they don't find out who she is first.