Airing during ABC Family’s "13 Nights of Halloween," this is a fan-favorite flashback episode. Set a year before Alison’s disappearance, the episode reveals how Alison tormented people long before she vanished, including a young Mona Vanderwaal. It's filled with Easter eggs and clues that would become crucial to solving the show’s mythology, confirming that 'A' or someone connected to them has been watching for years.
Aria continues to manage her secret, illicit relationship with Ezra Fitz, which faces immense pressure from "A" and the risk of exposure. The Climax: The Masquerade Ball Finale pretty little liars 2 season
As the messages escalate, the Liars start to suspect that a new "A" has emerged, seeking revenge on the town and the Liars themselves. They begin to investigate, gathering clues and following leads, but every door they open seems to lead to more questions. Airing during ABC Family’s "13 Nights of Halloween,"