Lesley Fera

The BAU travels to San Francisco to investigate the murders of several homeless men and teams up with a separate group of BAU operatives.

While Jane and the team examine a crime scene where a baseball scout has been found murdered, Jane is clocked in the head and knocked unconscious by a ball – causing him to flash back to his childhood with his overbearing father, Alex (guest star NICK CHINLUND – Desperate Housewives).

Cuddy receives news that forces her to re-evaluate her priorities; a teenage patient's suspicious body scars suggest his illness is more than physical.

A 2004 case involving the disappearance of a female war veteran reopens when her prosthetic arm is found in a river.

"The past will come back to haunt you" — this saying has never been more true than for Aria, Spencer, Hanna and Emily. As the girls try to pay tribute to Alison's memory, the four friends are faced with unresolved issues. Aria has an unsettling encounter with Byron's old mistress, Meredith (recurring guest star Amber Borycki – The Big Bang Theory, Harper's Island). Emily is forced to see Toby Cavanaugh (recurring guest star Keegan Allen) in a new light. Spencer is reeling in the wake of someone with a vengeance and Hanna is desperate to have her boyfriend forget the "old" Hanna. With "A" taunting them every step of the way, can the girls forge ahead and leave the past behind? Meanwhile, Detective Wilden (recurring guest star Bryce Johnson – Popular) uses his new connection to Hanna and Ashley to his benefit. But will he get the answers he's looking for by making himself at home in the Marin household?