Pretty Little Liars (season 1)

The girls try to pay tribute to Alison's memory, but they are still faced with unresolved issues. Toby, Jenna's stepbrother, has come back to school. Aria has an unpleasant encounter with her father's former mistress. Spencer faces a vengeful Melissa after her kiss with Wren. Hanna tries to get Sean to forget the 'old Hanna'. Toby and Ben, Emily's boyfriend, have a fight and Emily breaks up with Ben. Emily and Maya get closer and Spencer copies her sister's essay and puts it as her own when she can't think of anything to write. The girls realize that leaving the past behind is much harder than they first thought.

Emily accepts an offer to go to Homecoming with Toby, despite Hanna presuming she wanted to go with Maya. Spencer gets ready for Homecoming with Alex as her date, but will things go as she planned them to? Hanna meets Lucas when she joins the 'Real Love Waits' celibacy club with Sean. Aria is still reeling over her breakup with Ezra and the tension between her parents. Spencer asks Hanna to collect Jenna's psychotherapy file, with a shocking twist.

Aria's brother, Mike, doesn't take it very well that his parents are separating, which leads to him fighting in school after his mother decides to not watch his game, as Mike and Aria's father will be there. Emily decides to try dating Maya. Hanna and Sean make-up, but she's more interested in Lucas. Spencer and Alex have some fun in the country's club kitchen. At last, A has still one more creepy message to deliver to the girls, which makes them assume that Toby might be dead. Sara Shepard, writer of the Pretty Little Liars book series, makes a special appearance in the episode as a substitute teacher at Rosewood High School.

A terrible storm comes to Rosewood, and all of the students are trapped in school. Emily reveals a secret after she's accused of killing Alison. Just as Aria is about to give dating Noel a chance, Ezra returns. Byron leans on Ashley for advice as his relationship with Ella only gets worse. Meanwhile, Spencer discovers something that her mother has been keeping from her. And at the end of the episode, Lucas tries to tell Hanna something. We see his shoes are dirty, suggesting that he was at Alison's memorial.

When new evidence leads the FBI to believe that Toby killed Alison, he tries to tell Emily his side of the story yet she rats him out. Spencer tries to mend fences with her sister Melissa, just as her ex-boyfriend Ian returns. Emily's dad comes back from his deployment and her mother was sent a picture of Emily and Maya kissing. Aria begins to develop feelings for Noel, which complicates her relationship with Ezra even more, until Ezra admits his feelings for her and they kiss with Hanna watching as she keeps post to find out who "A" is. Ashley's financial problems are bringing her to the brink. Meanwhile, the girls go "glamping" for Mona's birthday in hopes of closing in on "A", but when "A"'s identity is revealed to Hanna, "A" runs her over with a car before she gets a chance to tell the others.

Hanna is now in the hospital and remembers who A is. She tells the girls it was Noel Kahn because she saw him write 'I see you' on the back on Ezra's car while Aria and Ezra were kissing. But the girls are starting to question if the person who killed Alison and 'A' are two different people. Meanwhile, Melissa and Ian elope. Also Lucas admits his feelings for Hanna, but is both angry and heartbroken when she tells him she only likes him as a friend, and tells her that she deserves a better boyfriend than Sean. The girls find out that 'A' wrote on Hanna's leg cast which is, "Sorry for losing my temper, my bad," which could have been anyone who entered Hanna's room while she was asleep. Also, Emily finally has enough courage and comes out to her parents; her father accepts it because she's his daughter and he loves her, but her mother has a much harder time accepting it.

Hanna mends in a wheelchair upon her release from the hospital, and Mona throws a surprise party for her. At the end of the party, Ashley and Hanna realize someone has stolen the bank loan in the lasagna box. Meanwhile, Aria is struggling to tell Ezra that Noel knows about their relationship; Spencer's romance with Alex hits a snag and Emily invites Maya to dinner with her family; Surprises haunt the Liars as "A" continues the game. It is also revealed that Lucas destroyed Alison's memorial and Jenna was the one who told the police where Toby was.

As the school gets ready for the dance-a-thon, Aria, Emily, Hanna and Spencer have more on their minds than raising money for the school trip to Washington, D.C. Hanna and her mother are having a financial crisis, but when 'A' leaves her an offer that would potentially break Lucas's heart but get her out of money troubles, will she be able to refuse? Emily can only think of Maya and is desperate to speak to her -- so much so that she enlists the help of Caleb, the new bad boy in the school. And as an important piece of property goes missing, Spencer finds being in close quarters with her new brother-in-law, Ian, more difficult than ever. Meanwhile, Aria's former babysitter, Simone (Alona Tal), comes back to town for a surprise visit. But what should be a happy reunion quickly becomes a nightmare for Aria when Simone sets her sights on Ezra.

The girls try to resume a sense of normalcy in their lives, but even the simple tasks of dating and extra-curricular activities meet with strife. Emily must deal with a jealous teammate (Lindsey Shaw) who is threatened by Emily's return to the pool, as Aria and Ezra plan their first date out in the open. And Hanna is still stuck playing "A’s" game, but the next hurdle might just have complications for another Liar. With "A" pulling the strings and making matters worse, will the girls be able to weather the storm and lie their way out of it, or will they have to face the ugly truths? Meanwhile, Spencer turns to Ali's brother, Jason, for information about the night they believe Alison died, only to have to face part of her unpleasant past with Ali.

A crucial swim meet for the Rosewood Sharks is the setting for Aria, Emily, Hanna and Spencer to experience a lot of turmoil. Emily and Paige go for round two, as they are pitted against each other to compete for the anchor leg of the big race. And Caleb calls in his favor with a guilty Hanna as she tries to deter Aria from asking too many questions about Ella's ticket to the museum opening. Meanwhile, Spencer takes on the task of tutoring Toby in French to try to get some answers.

Aria's dad has a parent-teacher interview with Ezra. Meanwhile Toby and Spencer start to get closer. And Spencer and the girls realized what the note means. Hanna's mom gets in trouble when Mrs. Potter's alleged nephew tries to access Mrs. Potter's safety deposit. Paiges' father shows up at the school and makes a huge scene in the school cafeteria, demanding an answer to why Emily is the swim team captain and not his daughter. He thinks Emily is getting special treatment because she is gay. Later, when Emily is in her car, Paige shows up and kisses her. She quickly leaves saying, "Don't tell."

The girls are doing a play together; when they finish rehearsing they find a trophy with blood on it, making them think its Alison's blood... but it turns out to be rat's blood; they all revisit memories about when they crashed a frat party; Aria uses the play to get closer to Mr. Fitz; Hanna and Caleb kiss; the police come after the girls at the end with some questions.

After a shocking revelation from the police, the spotlight is turned on the four little liars who look to be crying wolf. But with everything pointing to Ian, how could the girls be wrong? Or could this be just another game "A" is playing with them? With the cops now demanding answers from Aria, Emily, Hanna and Spencer, will the girls come clean about "A," or are some secrets better left buried? The police take a special interest in Spencer, who accuses Ian of murder. The truth surrounding what happened in Hilton Head is revealed. Meanwhile, secret relationships take a toll on some of the Liars while others blossom. Hanna loses her virginity to Caleb. Love is not for the faint of heart. At the end of the episode Toby and Spencer kiss. When she gets home the cops are there, the secret is revealed that her and Ian were hooking up.

As the heat is turned up on the suspicions surrounding Spencer, the girls must come to the reality that they aren't the only ones hiding secrets in Rosewood. Emily and Aria overhear Caleb arguing with someone on the phone about Hanna. They tell Hanna they believe it was a girl, and soon they see Jenna with a pendant Hanna thought Caleb intended for her -- and which turns out to be a flash drive. Hanna confronts Caleb, who says he's been spying for Jenna and she kicks him out of the house for good. Later, Hanna runs into Jenna in the school restroom and slaps her. Jenna cries, and this is the second time we see her face. Aria's mom finds out Aria is dating someone, and tries to find out whom. Aria's dad soon joins in the investigation and nearly finds out about Ezra, until Aria's parents fight over whether they should pry into Aria's life, reversing their reconciliation. Ian encourages Spencer to run away, and Toby asks her not to. Spencer's mother tells Spencer that the police have new evidence against her, but that she thinks Spencer is innocent. Emily and Paige reconcile after Paige reconciles herself to being gay.

Everyone has something to hide – whether it be a secret romance, who they really are and what their true intentions are. For Mr. Fitz, he's hiding an old romance with a girl he met in college, Jackie Molina, whom he had been engaged to but never married, which makes Aria suspicious and Hanna aids her in creating a fake account and friending her to find out more about her. Paige gets hurt when Emily cancels a date with her to the Founders Festival; Emily is tired of being Paige's secret. Emily finds a storage key, the one Jenna has been looking for, in a snow globe Ali gave her after she admitted Emily was the "only person she could be completely honest with". Caleb comes to the Marins' home to drop off a letter for Hanna and let Ashley know that he is leaving Rosewood to go to Arizona for good, but when Ashley suggests he deliver the letter to Hanna at the festival in person, Mona has her own way with the letter. Spencer finds out some more information about Ian, Melissa, and Alison at Hilton Head while preparing for the festival; and a meet with Toby at the festival at night goes wrong when someone traps Spencer in a scary funhouse. However, Ian rescues her, but when they start to leave, Spencer runs up to Toby and they lock each other in a loving embrace and kiss, to which Spencer's family sees this. Garrett confronts Ezra (after seeing Aria leave his place) and sees the props Aria and Ezra used for a couple photo (out of a fit of jealousy about Jackie and Ezra's old couple photo in Italy.) The girls visit the storage room, where they see Ali's old lunchbox with a flash drive in it. They realize that someone has been recording a video of and watching Alison, Aria, Emily, Spencer, and Hanna all this time and wonder who could have been spying on them.