When some very creepy things start happening around school, the kids at Herrington High make the chilling discovery that confirms their worst suspicions: their teachers really are from another planet!

Flynn Sullivan is a junior high vice-principal balancing the demands of her career with single motherhood.

The lockers are splattered with blood, the student bodies are piling up and that's not mystery meat they're eating in the cafeteria… it's the faculty! And that's just the start of the worst day of school ever when a nightmarish virus is unleashed, turning humans into flesh eating zombies and converting Fujimi High School into a literal hell on Earth. Now it's a crash course in survival, and the only test or skill that matters is the ability to keep moving, breathing and fighting. Because if nerds, jocks and the surviving staff can't find a way to work together to escape this carnal house of education, they're all going to end up on the menu. And that's assuming there's anyplace safe left to escape to.

When an island half-disappears from the face of the earth, a mysterious organization sends out invitations for a tournament to every skilled fighter in the world. "If you win you can have ANYTHING you want," they claim. They're recruiting only the best to fight the best and claim the title of The God of High School. Jin Mori, a Taekwondo specialist and a high school student, soon learns that there is something much greater beneath the stage of the tournament.

Dewey Finn, an out-of-work rock singer and guitarist, pretends to be a substitute teacher at a prestigious prep school. After identifying the musical talent in his students, Dewey forms a band of fifth-graders, in an attempt to win the upcoming Battle of the Bands contest.

Dewey Finn, an out-of-work rock singer and guitarist, pretends to be a substitute teacher at a prestigious prep school. After identifying the musical talent in his students, Dewey forms a band of fifth-graders, in an attempt to win the upcoming Battle of the Bands contest.

Spino, a pathologist, receives an unidentified body which looks familiar to him... himself, 30 years younger.

A barber gives in to temptation and steals some money, leading to blackmail and murder.