After Platt becomes the victim of a brutal assault, Voight and the team throw themselves into the investigation.
An Officer Down call turns out to be a male stripper dressed like a cop. Castle and Beckett explore the world of male strip clubs and struggling actors.
A man who believed he had been abducted by aliens is found murdered. The hunt for his killer is hampered when the man's corpse disappears from the coroner's van.
An NSA analyst who predicted a security breach works with the team when the Secretary of Navy was bugged during a confidential briefing.
An arson case forces Nick to ask an old foe for help; Viktor educates Adalind about well-played diplomacy; Juliette is involved in a confrontation.