when does ally appear in pretty little liars
Alison DiLaurentis Alison DiLaurentis is introduced as a very popular girl from the suburb of Rosewood, Pennsylvania, and the leader of a clique composed by her, Spencer Hastings, Aria Montgomery, Emily Fields and Hanna Marin. The first minutes of the pilot episode show the five friends reunited in the barn-turned-loft of the Hastings family during a night of summer vacation. In the midst of night, Hanna, Emily and Aria wake up to see Spencer arriving back to the barn after leaving to somewhere. Spencer naively announces that she has heard a scream of Alison, seemingly shaken due to something. Shortly after, Alison is pronounced as a missing person. One year later, the friends reunite and start to receive threatening text messages from someone unknown using the alias of "A."[15] During the entire first season, Alison appears in flashbacks. In these flashbacks, Alison is shown as a ruthless, despicable, two-sided teenager who uses the others' secret against themselves.