Joyce Greenleaf

Agent Hotchner revisits the first case he worked at the BAU, when details come forth that one of the deadliest serial killers in New England's history has struck again after a 10-year hiatus.

Ray attempts to reconnect with his family and repair his relationship with Bridget following the shootout. Abby's medical diagnosis threatens to upend the Donovan family and Mickey plans a heist as Detective Muncie closes in on his whereabouts.

House shares explicit medical stories with students at a school's career day; two fifth-graders try to help House understand how his antics prevent him from showing Cuddy how he feels.

Denise goes undercover to find a missing boy, while Denny's carefree attitude on guns is scrutinised after a mishap at a paintball session.

Keith has a problem with David's wish to become a deacon; Nate has dinner with Brenda's parents and meets her brother Billy.

Peggy comes to a shocking realisation but isn't aware her true enemies are closer than she thought. Sousa narrows in on the truth about Peggy.