Scott tries to rescue Lydia from Eichen house.
Deaton finds new information about the Dread Doctors while Scott and Malia come up with a plan to help their friends.
Scott and his friends follow Dr. Valack's advice; and experience strange effects as a result.
The pack enters Eichen House in order to learn more about the Dread Doctors.
Stiles tracks a fugitive; and Liam plays wingman for Mason at a nightclub.
Scott tracks a new shapeshifter that's threatening Stilinski; and Malia receives information about her mother.
When Ally's friend from camp visits, Austin gets jealous.
When a son discovers his murdered parents, the team soon realizes that this perfect family wasn't really perfect. Megan has a new love interest and Curtis is grappling with his new position.
After Leo and his mom move into his step dad's house, he accidentally finds a secret lab in the basement with three bionic teenagers.
As Rosewood's annual Father-Daughter Dance arrives tensions are high with the Liars and each of their fathers. Meanwhile, Ashley is snooping around attempting to find out what's wrong with Hanna.
While all the Liars seem to be at odds with each other, Toby fights to win Spencer back and becomes suspicious of the antics of the supposed best friends. Meanwhile, the Montgomerys receive some worrisome news.moreless
Aria, Emily, Hanna and Spencer finally decide it is time to tell someone about "A." Meanwhile, Hanna's infamous grandmother drops into town for Tom's rehearsal dinner.
Spencer zeroes in on Jason and is determined to find out what exactly he has been hiding. Yet, Aria can't help but see the good in him. Meanwhile, Hanna aids Caleb when it comes to making a decision about his family.moreless
The pressures upon Emily come to a head when her father shows up for one of her biggest swim meets, and she winds up in the hospital. Meanwhile Hanna is dealing with her Dad's upcoming wedding and the possibility of Caleb leaving town.moreless
It's Emily's moving day, while Hanna worries about Caleb's wheelings and dealings. Aria is concerned about a party that both Ezra and Jason are invited to and Toby reacts to a discovery about Spencer.moreless
Hanna learns more about Caleb's foster family situation, while the other Liars deal with the resolution and closure of the news about Ian.
Hanna and Tyler double date with Lucas and Danielle, while Emily's mother Pam tells other at her school that she has a scholarship offer.
Spencer's falsehoods get her into trouble as one of her lies causes her to become a person of interest in the murder.
"A" persuades Hanna to return to her law-breaking ways. Meanwhile, Noel continues to bait Ezra, Emily's mother makes clear her dislike of Emily and Maya's relationship, Spencer adjusts to Melissa's sudden marriage, and the girls get help from a surprising place.moreless
Spencer, Aria, Emily and Hanna must deal with the consequences of their disastrous homecoming dance. Family, friends and boyfriends are all in flux, and the girls need to act fast to prevent the situation from getting worse. To top it all off, they are also hiding killer information about Toby and text messages from someone other than 'A' are causing tensions to rise in the Montgomery household.moreless
The girls must pay the penalty for trying to ignore ''A.'' Whether it is a family in crisis, parental praise for an undeserved honor looming over their head or wearing totally unfashionable scrubs while working off a debt, the girls must deal with it all. And on top of that "A"'s lipstick message is still haunting them.moreless
With Jenna's return to Rosewood, the girls are forced to face an unpleasant incident from their past that sealed their friendship forever, especially since "A" won't let them forget it. Meanwhile, questions about the night of Alison's disappearance begin to arise as the events of that fateful night continue to haunt Aria, Spencer, Emily and Hanna.moreless
The perfect little town of Rosewood holds more than its fair share of secrets and for four friends, Aria, Spencer, Hanna, and Emily's darkest ones are about to unravel. A year after their Queen Bee, Alison, goes missing, the girls begin receiving messages from ''A'', saying – and threatening – things only Alison would know.moreless