Dexter is chasing Arthur and sees that he is stalking two siblings with their babysitter and kidnaps the boy Scott Smith in an arcade. Soon Dexter learns that there are several ten year old boys missing and they begin Trinity's cycle of four victims, and not three as Lundy believed. Dexter meets Jonah expecting to discover where his father might have gone and hold the boy captive. Meanwhile Debra gives and interview to Christine and asks Angel to check the journalist's reaction when she asks how she could have been so fast to arrive in the crime scene. Angel sends samples of Christine and after the DNA analysis, they find that Christine and Trinity are relatives and Christine is arrested.