Emma works through the implications of her father's return. A bloody gift proves Audrey's stalker is progressing. Branson returns to Lakewood.

The death of a loved one hits everyone hard and GW High goes into lockdown. Suspicions rise among the Lakewood Five.

Emma starts to question her friendships when tensions rise between her and her friends. Meanwhile, Noah reveals his latest theory about the identity of Piper’s accomplice. Noah takes his investigation further.

Eli and Emma go on a criminal adventure. Noah's relationship with Zoe escalates. Brooke and Audrey are lured into a trap by the killer.

The Lakewood Days Carnival descends into madness. The killer forces Emma through a gauntlet. Brooke launches an attack on the town.

Emma and Audrey learn why they are being targeted. Noah loses something that is dear to him. A long-missing body of evidence is located.

Audrey and Emma are driven further apart, Maggie and Acosta worry about secrets from their past and Noah's affection for Zoe is used against him.

In the wake of another murder, Emma and Audrey find themselves primes suspect when evidence appears implicating them both in the killing spree.

Emma and Audrey must make a daring move. Finally facing off with the Killer, they unmask Piper’s final surprise.

8 months after Kieran’s arrest, Emma is struggling to focus on her future. Noah and Stavo have combined forces to create a best-selling graphic novel based on the Kieran Wilcox murders and Audrey is in a new relationship.