Nick McCallum

The city's gun recovery program unearths a murder weapon, leading detectives to re-examine a case from 1987 that involved the accidental drive-by shooting of a little girl.

House assigns the candidates to the particularly challenging case of an uncooperative, over-the-hill rock star with a history of drug abuse and civil disobedience; Cuddy orders House to hire the members of his team.

Not only is their partnership at risk but also their friendship, when Caroline brings Max to a seminar to help come up with branding for their cupcake business.

The investigation into the death of a pool shark reveals that the killer may have had paranormal powers; Castle and Beckett try to get back to normal.

When Wesley recognises the hallmarks of Angelus' 18th-century killing spree, Angel wonders if he is slaughtering people in his sleep.