Watson discovers Capt. Gregson's secret relationship with a former female NYPD officer and inadvertently sets the couple's breakup in motion. Meanwhile, Holmes investigates the murder of a wealthy woman who left her vast estate solely to a beloved dog.moreless
A cold case gets a hot lead and Carrie and Al pursue two con artists.
An investigation into a teenage girl who has vanished leaves DNA the only lead to find her kidnapper. Meanwhile, the case takes a toll on Dodds.
Danny's latest case involves a pair of "Bonnie and Clyde" bank robbers. Frank contemplates dating a woman who's a friend of Erin.
Motivated by revenge, the Chameleon once again challenges the NCIS team after an undercover assignment sets in motion a deadly mind game devised by the criminal mastermind.
Reese, Finch, and Fusco must protect Detective Carter without giving away their true identities, when the Machine gives them her name as the next Person of Interest.
The team heads to LA to work with the team there to investigate a murder, which soon turns into something bigger. Meanwhile, Tony begins snooping into Ziva's private life.
Richard Castle is called in to help police after two murders look very similar to murders from his books.