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.

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.

The death of a porn star shocks Ruth, who isn't prepared for the many co-stars who arrive at the funeral home.

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

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 is invited to a career day at an elementary school where he tells stories about several medical cases, while also making fun of various cultural references.