The father of the person whom Dexter killed makes a surprising announcement which could prove to be a huge problem for Dexter. Meanwhile, Dexter discovers Harrison was involved in a serious incident at the high school. And now this young newcomer is considered a hero to the entire town. Angela digs deeper into a missing persons case.

Someone in Iron Lake has discovered Jim Lindsay's secret identity, sending Dexter on the prowl to find out who it was. This pursuit leads him to realize that he might not be the only serial killer in town. Meanwhile Harrison spirals out of control during a wrestling match and Angela makes a dark discovery of her own.