Rebecca Kessler

Alison puts on a brave face as she returns to Rosewood High and attempts to repair the damage she inflicted years earlier; Caleb and an old nemesis return.

Hanna is pushed down a dark path after Alison moves in; Aria fails in her duties as maid of honour; Spencer and Emily pursue a lead involving the dead girl in Alison's grave.

Aria, Emily, Hanna and Spencer feel trapped and search desperately for a way out of a bad situation; Alison works on building an army of her own.

Spencer spends time with Jonny; Emily tries to figure out Talia; Hanna digs into the past of Mona's friend Lesli; Mike's behaviour concerns Aria; Holbrook returns to Rosewood.

A funeral brings all the Pfeffermans together and reunites them with their past -- Shelley and Maura with old friends, Sarah with her ex, and Josh with his teenage babysitter, who brings a 17-year-old boy.