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 grandma's apartment in Georgia. Spencer sees a Hilton Head, South Carolina tag on Alison's luggage. (Flashback, 1x12)

Afternoon: 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, 1x22)

(Not shown: Alison puts the flash drive in her old lunch box, which she puts in storage.)

Afternoon: Alison visits Emily and gives Emily a snow globe, in which a key to a storage place is hidden. Alison tells Emily she needs to go because she has "a prior engagement." (Flashback, 1x21)

Night: Alison arrives at Spencer's barn and the girls hang out. (Scenes, 1x01)

Night: Alison and Spencer argue. Alison pressures Spencer to tell Melissa about Spencer and Ian. Spencer says to Alison, "You are dead to me already." (Flashback, 1x10)

Night: Alison meets up with Toby. According to Toby, he and Alison met outside of Spencer's barn, and Alison borrowed his sweater because it is cold. When they part, Toby sees Alison get into a car with a guy, still wearing his sweater. (Scene, 1x10, Toby to Emily)

Night: Alison meets up with Ian at the "kissing rock." (Scene with video that A sent, 1x13)

Night: Aria, Hanna, and Emily wake up to find Alison and Spencer gone. Spencer appears and says she thinks she heard a scream. (Scene, 1x01)