A kidnapper dressed as a clown re-emerges after 20 years; Jane's relationship with Casey grows more serious; Maura inadvertently gets in the middle of another relationship.
Quest roles:
Chris Vance(Lt. Col. Charles 'Casey' Jones), Andrea Bordeaux(Neda), Keir O'Donnell(Craig Johnson), Max Charles(Kevin Silver), Sky Soleil(Derrick Johnson), Davis Cleveland(Zach Langley), Ashanti Brown(Diane), Lilli Birdsell(Joan Silver)