In the Pretty Little Liars episode (Season 5, Episode 21), the story follows the Liars as they grapple with the shocking revelation that Mona Vanderwaal had planned to fake her own death to frame Alison, only for the plan to go horribly wrong. Key Storylines
This episode serves as a critical bridge toward the Season 5 finale, shifting the suspicion away from Alison and introducing the mysterious "Varjack" identity.
: Equipped with new information from Mike Montgomery about Mona's original plan, the girls visit Alison in jail. They realize she is innocent of Mona's murder and work to find a way to get her released, while Aria struggles to protect her brother, Mike, from "A's" retaliation.
: The duo visits Cyrus Petrillo in the hospital, who is suffering from severe burns. Before he becomes unresponsive, he gives them a cryptic clue: the name "Varjack," hinting at a new player or alias in the "A" mystery.