Jared Hillman

Gunshots, a fleeing van and a massive blood pool all point to murder, but when Castle and Beckett arrive at the crime scene, they discover that it lacks something - the victim.

Veronica uses all of her charms to extract information about her mother from a rookie cop. She also learns that Mac was switched at birth with a baby from a wealthier family, which leaves her to dwell on her own family.

An investigation leads the team to question a lone survivor of a former terrorist network, while Kensi and Deeks follow the trail into the woods.

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.

The team searches for a 17-year-old boy who was last seen with the charismatic headmaster of his private boarding school, and with whom he may have had an unsavoury relationship.

Paranoia levels run high in the team when Jack finds himself under investigation after he is accused of coercing a confession from a paedophile.