[s5e25] Welcome To The Dollhouse File

: The episode introduces the name Charles as the identity of Big "A". Through a hidden film found by Spencer, it is suggested that Charles is a member of the DiLaurentis family—specifically, a sibling to Jason and Alison.

The finale delivered several massive shocks that redefined the show's mythology: [S5E25] Welcome to the Dollhouse

: The ending, which shows the girls escaping the bunker only to find themselves trapped within a massive electric fence in the middle of nowhere, highlighted the near-infinite resources and control "A" possessed. Production and Legacy : The episode introduces the name Charles as