Plot summary
The FBI are now involved and believe that Toby killed Alison. They show a video to the girls of Alison flirting to camera. The girls identify the top she wears as her own, but not the cardigan. They also recognise the place. Spencer tries to mend fences with Melissa, just as her ex-boyfriend Ian returns. Mona receives a message from "A" saying that Hanna lost weight via liposuction. She publicly ends her friendship with Hanna. Emily's father returns from his deployment and her mother is sent a picture of Emily and Maya kissing.
Aria has feelings for Noel, but Ezra admits his feelings for her and they kiss. Hanna sees this. Ashley's financial problems are bringing her to the brink of theft. Meanwhile, the Aria, Spencer and Emily go "glamping" in the woods for Mona's birthday. Hanna plans to spy on them in case "A" is there. Toby finds Emily and says he was with Alison that day and he lent her his cardigan but she got in a car with another man and also that Jenna was obsessed with him. "A"'s identity is revealed to Hanna but "A" runs her over with a car before she has a chance to tell the others. Toby is arrested. ' A' ending: 'A' looks at the video of Alison at the Kissing Rock and it is revealed that Ian Thomas was with her.
Credits
Adapted from Wikipedia contributors, Pretty Little Liars season 1. HTML formatting and reference markers removed.