The killer's motivation is finally revealed.
Sarah and Tom do some bonding and a breakthrough is made in the Executioner case.
Sarah makes a shocking discovery.
Alison attempts a power play at the Bulletin and Sarah investigates Alan.
Dylan meets Tom for an interview and Sarah investigates a missing persons case.
Brenda reveals a dark secret to Sarah while Robin tries to overcome a devastating loss.
Sarah's grandmother arrives for a visit, and the Executioner claims another victim.
Sarah returns to the town where her parents were murdered only for a new wave of killings to begin.