The girls are desperate for an invite to Noel Kahn’s legendary Halloween party.
At the party, Alison stages a terrifying "attack" by a masked assailant to test the loyalty of her friends. She is initially amused until she realizes the person she thought was her partner-in-crime (Noel) wasn't actually there for the prank. Key Character Backstories
" The First Secret " is the of the mystery drama series Pretty Little Liars . Originally aired on October 19, 2011, it serves as a prequel/Halloween special that takes viewers back to the autumn before the show's main events began. Plot Overview [S2E13] The First Secret
Struggles with her self-image and her father’s recent departure, all while being bullied by Alison about her weight.
Fans often cite this as a top-tier episode because it fills in essential gaps in the Rosewood lore. It highlights Alison’s manipulative nature and the complex power dynamics she held over her "friends," while also planting early clues about the and the identities of those who hated her most, such as Lucas and Mona. Pretty Little Liars S2.E13 “The First Secret” The girls are desperate for an invite to
The episode follows the Liars—Aria, Hanna, Spencer, and Emily—during the Halloween of 2008, when Alison DiLaurentis was still the undisputed "Queen Bee" of Rosewood.
While shopping for costumes, Alison meets the "new girl," Jenna Marshall. When they both want the same Lady Gaga costume, Alison attempts to intimidate her, but Jenna famously refuses her offer of friendship, marking the start of their rivalry. Key Character Backstories " The First Secret "
"The First Secret" reveals that Alison was being stalked long before the other girls were. Throughout the episode, she receives threatening texts and a package containing a creepy voodoo doll with the message: “It’s my turn to torture you” . This suggests that "A" (later revealed to be Mona Vanderwaal) was already active and targeting Alison months before her disappearance.