Caleb and Toby team up to investigate �A� and what really happened the night of the lodge fire and encounter a source that points to a new possible identity for �Red Coat.� Hanna struggles to act like everything is normal and her friends are unsure about how to help her. Aria worries about Mike�s behavior in light of an incident at school and Ezra struggles with how he now fits into her life. Meanwhile, The Liars are determined to find a new suspect in Wilden�s murder and their tactics have unintended consequences. And, �A�s� new plan threatens to send everything crashing down around one of the Liars.