what season does alison return in pretty little liars
Alison DiLaurentis After the girls find Alison's diary, they try to understand her. Throughout the season, Alison is shown in several flashbacks concerning her behavior, mostly based on histories written on her diary.[26][27][28][29][30][31] The girls later meet Carla Grunwald, who tells them that she helped Alison step out of the grave that she was buried; Grunwald then drove her to a hospital, but Alison ran away.[32] With this confirmation, the girls start a quest to find Alison, following the steps of two persons using the Red Coat costume, one of them being revealed to be CeCe. Fortunately, after a Halloween party, the girls follow a Red Coat, who is revealed to be Alison. She tells the girls that she needs their help, but she vanishes shortly after.[33] Alison later appears to Emily and starts requesting things to her.[34][35] The season ends when Alison sits down with her friends to explain everything that had happened to her two years earlier.[36]