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Season guide

Pretty Little Liars: Original Sin: Summer School

8 episodes Premiered May 9, 2024 Updated Nov 8, 2026

In the second season of Pretty Little Liars: Original Sin, the central group of protagonists faces the academic and personal challenges of summer school. As they navigate this period, the characters are confronted by a new antagonist whose identity and potential connection to the figure known as A remain uncertain. This new threat emerges to test the resolve and relationships of the group, setting the stage for a ser

Previously on Pretty Little Liars: Original Sin

Season 2 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ The series is a drama and mystery production that began in 2022.
  • ⚡ The narrative is rooted in a series of tragic events that occurred twenty years prior to the start of the show.
  • ⚡ The protagonists are a group of individuals whose lives are interconnected by past secrets.
  • ⚡ The series is produced by Muckle Man Productions and Alloy Entertainment in association with Warner Bros. Television.
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Season overview

In the second season of Pretty Little Liars: Original Sin, the central group of protagonists faces the academic and personal challenges of summer school. As they navigate this period, the characters are confronted by a new antagonist whose identity and potential connection to the figure known as A remain uncertain. This new threat emerges to test the resolve and relationships of the group, setting the stage for a series of events described as a killer summer. The narrative continues to build upon the mystery and drama established in the series, maintaining the high-stakes environment that defines the lives of these individuals. Produced by Muckle Man Productions and Alloy Entertainment in association with Warner Bros. Television, the season explores the ongoing consequences of the characters' pasts and their current struggles. As the group attempts to move forward, the presence of this new villain forces them to confront dangers that threaten their safety and unity. The season serves as a continuation of the overarching story, further developing the mystery-driven plot that characterizes the series while introducing fresh obstacles for the protagonists to overcome during their summer sessions.

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Season 2 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 2 Progress Shield

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Binge Efficiency Engine

Season 2: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

38%
63%
Mytharc (3): Crucial lore & season climaxes
Core (5): Character development & subplots
Side Quest (0): Standalone / filler
S2·E1 Mytharc

Chapter Eleven: Spookyspaghetti.com

May 9, 2024 · 50 min

The PLLs await the results of A's trial and a much-needed break – only to be cursed with a fate worse than death ... summer school.

S2·E2 Core

Chapter Twelve: Summer Lovin

May 9, 2024 · 50 min

Heeding Dr. Sullivan's advice, the PLLs make the most of their summers. Meanwhile, Imogen forges a new identity away from her closest friends.

S2·E3 Core

Chapter Thirteen: Sweet Sixteen

May 16, 2024 · 49 min

As the PLLs plan Mouse's surprise sixteenth birthday party, Tabby and Imogen face boy problems, Noa clashes with Jen and Faran spills her secret.

S2·E4 Core

Chapter Fourteen: When a Stranger Calls Back

May 23, 2024 · 51 min

Still shaken from her encounter with Bloody Rose, Mouse searches for the real Rose Waters. Meanwhile, Imogen keeps tabs on Dr. Sullivan, Tabby works on a new short, Noa takes a muc

S2·E5 Core

Chapter Fifteen: Friday the 13th

May 30, 2024 · 51 min

A disturbing discovery causes the PLLs to doubt Dr. Sullivan. Meanwhile, during Tabby's movie marathon, Noa is forced to make a brutal decision.

S2·E6 Core

Chapter Sixteen: Hell House

Jun 6, 2024 · 46 min

After discovering that Kelly's church is using her former home for their disturbing "Hell House", Imogen springs into action, while Mouse and Ash plan a Pride pool party in protest

S2·E7 Mytharc

Chapter Seventeen: The Bogeyman

Jun 13, 2024 · 50 min

Still shaken from Hell House, Imogen learns about Dr. Sullivan's secret ties to A, while the PLLs set out to uncover Bloody Rose's identity.

S2·E8 Mytharc

Chapter Eighteen: Final Exam

Jun 20, 2024 · 52 min

The PLLs take a final stab at their list of suspects, and through a harrowing night will discover the identity of Bloody Rose Waters once and for all.

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