Mäddy Killian, a rebellious outsider, shocks her school by joining the cheerleading squad, fueling tragedy when she's thrown off a practice mound during a routine, resulting in her death. Her desire for revenge is sparked when she discovers that a star football player, Terry, had been dating her ex-girlfriend Leena and had also been involved with another student who died after being thrown during practice. Unbeknownst to everyone, Mäddy joined the squad to exact revenge on Terry and his teammates. After a series of supernatural events, including a car accident that kills all the cheerleaders, Leena uses Wicca magic to revive them, and they return with a thirst for blood, targeting their tormentors in a dark and violent revenge rampage.