A fourth season of 12 episodes has been confirmed and will premiere on June 23, 2014 on MTV. This will be the first season not to star Crystal Reed. New cast additions include Meagan Tandy as Braeden (who only appeared in 2 episodes of season 3), Dylan Sprayberry as "Liam", Khylin Rambo as Mason “an out-and-proud athlete” and Mason Dye as his best friend Garrett. Dylan O'Brien confirmed in an interview that Malia Tate (Shelley Hennig) would be a regular next season and joins the pack.
An altercation between a group of girls out for the night and a gang of local punks leaves the punks vowing revenge. It comes in the form of the gang-rape of a young mute (Heather) and her older sister (Brenda) starts hunting the gang in turn - armed with bear traps and crossbow. A teenage vigilante seeks revenge on a group of violent thugs who raped her handicapped sister and killed her best friend.