La trama sigue la vida de cuatro amigas (Spencer, Hanna, Aria y Emily) tras la desaparición de Alison, la quinta del grupo. Un año después comienzan a recibir mensajes anónimos de alguien que se hace llamar A. Los mensajes amenazan con rebelar sus secretos, incluso algunos que sólo Alison sabía.
Fecha de emisión: 2011-06-14
Duración: 41 min
Sinopsis: Disbelieved by police and families, the tormented quartet is sent for therapy. The chance to share at least some of their secrets proves appealing.
Fecha de emisión: 2011-06-21
Duración: 41 min
Sinopsis: Emily gets a lifeline, Aria faces Mr Fitz’s farewell, Hanna confronts her father, and Spencer is troubled by Toby’s treatment, Melissa’s lies, plus Alison’s brother.
Fecha de emisión: 2011-06-28
Duración: 42 min
Sinopsis: While having to stay apart, Hanna turns match-maker, Spencer exploits her sister’s loss, Emily forges a letter, and Aria is upset in pottery.
Fecha de emisión: 2011-07-05
Duración: 41 min
Sinopsis: Hanna helping Lucas requires Caleb’s aid, while tailing Melissa has an unexpected outcome.
Fecha de emisión: 2011-07-12
Duración: 41 min
Sinopsis: A shocking discovery finally lays to rest the killer’s identity – until Emily unravels clues that reveal otherwise.
Fecha de emisión: 2011-07-19
Duración: 42 min
Sinopsis: Distracted from the charity fashion show by parental and personal factors, the teen quartet is unprepared for the final display.
Fecha de emisión: 2011-07-26
Duración: 42 min
Sinopsis: Reaction to a dug-up item raises Spencer’s suspicions, an awkward dinner is disturbed at Aria’s, while Emily finds rooming with Hanna a pain.
Fecha de emisión: 2011-08-02
Duración: 42 min
Sinopsis: Emily’s swimming prospects could be sunk, along with Hanna’s hopes for the future, while Spencer and Aria make a gruesome discovery.
Fecha de emisión: 2011-08-09
Duración: 42 min
Sinopsis: Spencer is suspicious of what Jason is hiding in his outhouse, while Caleb learns who is after him.
Fecha de emisión: 2011-08-16
Duración: 42 min
Sinopsis: Aria is warned to be wary of Jason, while over-eager Mona encourages Hanna to try bonding with Kate at a country club.
Fecha de emisión: 2011-08-23
Duración: 42 min
Sinopsis: The harassed foursome face the fact they need outside help, though some problems stay strictly in the family.
Fecha de emisión: 2011-08-30
Duración: 42 min
Sinopsis: In custody after a testing day, three of the girls count the cost of the tasks ‘A’ set them to save a life.
Fecha de emisión: 2011-10-19
Duración: 42 min
Sinopsis: The Halloween before Alison vanished shows her controlling nature, and reveals other manipulative souls were also active.
Fecha de emisión: 2012-01-02
Duración: 42 min
Sinopsis: The fractured foursome endure their legal punishment plus the pain of shunning loved ones. But changes are coming.
Fecha de emisión: 2012-01-09
Duración: 42 min
Sinopsis: Hanna unwillingly allows Caleb’s involvement, while a crisis helpline call alerts Emily to a new suspect, and a birthday surprise goes badly.
Fecha de emisión: 2012-01-16
Duración: 42 min
Sinopsis: Hanna fears a vengeful visitor, Aria arranges to encounter Ezra, Spencer turns investigator, and Emily worries a renewed relationship is under threat.
Fecha de emisión: 2012-01-23
Duración: 41 min
Sinopsis: To protect them, Caleb and Toby are misled by Hanna and Spencer, while Aria goes out with Holden, hoping to see Ezra.
Fecha de emisión: 2012-01-30
Duración: 42 min
Sinopsis: Caleb’s tech skills are used against Hanna’s wishes.
Fecha de emisión: 2012-02-06
Duración: 42 min
Sinopsis: Supervised school workshops to foster honesty result in far more disclosures and discoveries outside the classrooms than within.
Fecha de emisión: 2012-02-13
Duración: 42 min
Sinopsis: Caleb’s laptop leads to trouble, Aria learns what Holden has held back, and a man who had information for Alison demands money.
Fecha de emisión: 2012-02-20
Duración: 42 min
Sinopsis: Mona is messaged by ‘A’ again, Ezra is tempted to leave, and Spencer wants answers from Melissa, but gets distracted.
Fecha de emisión: 2012-02-27
Duración: 41 min
Sinopsis: Daughter and dad bonding is awkward, while Ashley hopes to help Hanna by involving Detective Wilden.
Fecha de emisión: 2012-03-05
Duración: 42 min
Sinopsis: Jenna’s return brings conflict, Aria agrees to a risky meeting, while a bag of Alison’s possessions seems like old news.
Fecha de emisión: 2012-03-12
Duración: 42 min
Sinopsis: A creepy ‘hospital’ visited by Alison holds a sinister surprise, while Caleb goes along with a sting unwillingly.
Fecha de emisión: 2012-03-19
Duración: 42 min
Sinopsis: An uncomfortable close encounter with their nemesis awaits at least one of the tormented quartet, and a death is promised.
