Everyone is shaken by the latest dark events that have transpired at Camp Stillwater. No longer able to ignore that something seriously wrong is happening, some of the counselors decide to take drastic measures to get answers. Also searching for answers, Deputy Sykes gets a tip from the past the he may be on the right path. Meanwhile, flashbacks feature Deb.
When Billy’s apartment is condemned, he moves in with Marilyn; a misunderstanding lands Julie a role on a TV show. Rachel Dratch guest stars as a casting director. Abby Elliot guest stars as an Internet executive who offers Billy and Julie a trial job.
Alec threatens for full custody of Vivian, sending Karen into a panic. April and Marc find a condom in Lucy’s jacket, forcing April to give “the talk.” Kate doesn’t tell Joss and Harry about her new boyfriend, as it could have serious recuperations. Joss’ actions put Jonathan’s nephew in the hospital and later causes tension in her and Harry’s relationship.
The Rosewood P.D. begins to unravel the Liars’ cover-up, which leads them to question Rollins’ death altogether. Hanna deals with an inward battle on whether or not to tell the cops the truth, while Ezria struggles with an awkwardness in their relationship. Jenna reveals part of her plot and a new partner she is in cahoots with. Ali learns that the Liars gave her up as Charlotte’s killer in order to free Hanna, which does not go over well.
Meanwhile, someone is murdered for playing with the wrong team.
Mitch digs into Jackson’s past to get the answers they need to make the cure. Also, the rest of the team hunts for evidence related to the triple helix inside a quaint English town.