Pretty Little Liars: Original Sin S01e10 Final ... May 2026

Imogen gives birth to a healthy girl and decides to let Aria Montgomery and Ezra Fitz (a nod to the original series) adopt her.

Chip is arrested for his crimes after the girls courageously come forward. Pretty Little Liars: Original Sin S01E10 FINAL ...

The finale delivers a dual reveal. is the mastermind behind the "A" persona, but he didn't act alone. The physical brute stalking the girls is his son, Archie Waters . Imogen gives birth to a healthy girl and

He reveals that he targeted the daughters specifically to make the mothers feel the same "erasure" Rose Waters felt when she lost Angela. The Ultimate "Final Girl" Showdown is the mastermind behind the "A" persona, but

In a brutal showdown, Imogen manages to overpower Archie, proving herself the ultimate "Final Girl." The Aftermath and the "A" Cliffhanger The finale ends with a mix of closure and new nightmares:

The episode leans heavily into its slasher roots as Imogen, heavily pregnant, has to face Archie in a high-stakes pursuit through the school.

Tabby and Imogen finally identify their shared rapist: Chip . This adds a layer of modern horror to the finale, as the girls decide to hold him accountable while simultaneously fighting for their lives against Archie.