 Cory, Shawn, Topanga, Angela, and Kenny all get detention together. Things get scary when they discover someone dead and a bloody warning on the black board "NO ONE GETS OUT ALIVE". When Jack and Eric arrive, they all work together to try to find out who the killer is. At first they think its the creepy janitor, then Feeny, then the new girl - Jennifer Love Feffermen. But, when they all get killed, too, the remaining realize it must be one of them!