Hanna's friends want to use Caleb's computer skills to help them uncover A's identity, but Hanna is hesitant to involve him and instead throws him a surprise party. Meanwhile, Aria and Ezra face the consequences of divulging their secret romance.

Spencer and Hanna worry about their boyfriends' safety, fearing "A" sees the boys as targets. Meanwhile, Ezra avoids Aria's phone calls, so she devises a plan to get an answer from him.