Sequence of Events - Alison's Disappearance

Day of Alison's Death - Chronology of Events

Afternoon
Alison meets up with the girls after returning from her summer vacation at her grandma's apartment in Georgia. Spencer sees a Hilton Head resort tag on Alison's luggage. After asking Alison about Hilton Head being in South Carolina, Alison responds, "Why so many questions?" Alison seems excited, saying she can't spill every detail and to "wait for it, wait for it..." (Flashback, "Salt Meets Wound")

Alison visits Jenna at the hospital, shows Jenna a video of Jenna and Toby together, and blackmails Jenna into keeping "The Jenna Thing" a secret. Alison tells Jenna that the video will be kept "under lock and key." (Flashback, "For Whom the Bell Tolls")

Alison visits Emily and gives Emily a snow globe, in which a key to a storage place is hidden. Alison tells Emily to keep it safe because it's "a lot more valuable than it looks." Alison tells Emily she needs to go because she has "a prior engagement" but that she will meet up with the girls later. (Flashback, "Monsters in the End")

Night
Alison arrives at Spencer's barn and the girls hang out. (Scenes, "Pilot")

Alison and Spencer argue. Alison pressures Spencer to tell Melissa about Spencer and Ian, or she will. Spencer says to Alison that she is sick of her games. Spencer says, "You are dead to me already." Someone takes a picture of Alison in front of Spencer's barn, with Spencer's shadow in the shot. (Flashback, "If At First You Don't Succeed, Lie, Lie Again")

Alison meets up with Toby. According to Toby, he and Alison met outside of Spencer's barn, and Alison borrowed his sweater because it was cold. When they part, Toby sees Alison get into a car with a man, and she is still wearing Toby's sweater. (Scene, "Keep Your Friends Close", Toby to Emily)

Alison meets with Ian at the "kissing rock." Alison says to Ian, "You know you want to kiss me." Ian replies, "Come closer." A struggle appears to occur and the camera falls to the ground. (Scene with video that "A" sent, "Know Your Frenemies")

Aria, Hanna, and Emily wake up to find Alison and Spencer gone. Spencer then appears and says she she's looked everywhere but cannot find Alison, and that she thinks she heard a scream. (Scene, "Pilot")