TV Guide 5USA Tuesday

The agents learn one of their former investigative assistants has been murdered, and had been selling information about how to rob a warehouse full of valuable possessions belonging to a woman convicted of fraud. As the case proceeds, Tony becomes infatuated with the new leader of another team, who apparently returns his feelings. Crime drama, starring Mark Harmon and Michael Weatherly

Homicide police hand the case of a retired marine colonel found murdered with an axe over to NCIS when they are unable to solve the case, despite all the circumstantial evidence pointing to the deceased's drug-addicted son. They discover the suspect's mother went missing two years previously and Ziva suggests he may have killed more than one parent, while the family's neighbour is revealed to also have had a motive for wanting the man dead. Crime drama, starring Michael Weatherly and Cote de Pablo

The team investigates the murder of a marine working for the Defence Intelligence Agency who was blamed for the disappearance of 500 specialised rifles in Afghanistan. A cryptic message found at the scene, written in the victim's blood, leads the agents on the trail of a controversial manuscript that claims to expose the truth about the missing weapons, and an FBI agent with a secret. Crime drama, starring Mark Harmon and Pauley Perrette

Briscoe and Green investigate the murder of a bookmaker whose testimony led to the incarceration of a Mob boss 10 years previously. The trail leads to an apparently reputable businessman with a sideline in contract killing who appears to be taking orders from the Mafia. Police drama, starring Jerry Orbach and Sam Waterston

Briscoe and Green investigate the case of a motivational speaker who died after being pushed from a hotel balcony, and find themselves caught up in a protest against gay adoption laws. Crime drama, starring Jerry Orbach and Jesse L Martin

A shooting occurs at City Hall leaving a councilman dead and a water inspector injured. Once a suspect is identified, the prosecution has a hard time securing the murder weapon as evidence, as it transpires it was obtained by the FBI in a covert operation. Jerry Orbach stars

McCoy discovers two suicide victims were participating in clinical trials of an experimental antidepressant, prompting him to charge the drug company's CEO with second-degree murder. In court the defence argues all medical research carries an element of risk and the judge rules prosecution evidence inadmissible, leaving the outcome on a knife-edge. Sam Waterston and Dennis Farina star

Green goes undercover to gather evidence on gun dealers who murdered two detectives during a firearms sting, and McCoy tries to prove a fellow attorney paid the killers to avenge the death of his stepson, who was shot dead in a police operation several years earlier. Crime drama, starring Jesse L Martin and Sam Waterston

A famous novelist dies after undergoing plastic surgery, leading to the discovery that her surgeon made a crucial mistake by prescribing a drug that should not have been mixed with the antidepressants she was already taking. McCoy suggests the next of kin prosecute in a civil case, but Southerlyn disagrees and hunts for further evidence of malpractice

Two elderly people, both under the care of the same visiting nurse, die almost simultaneously and Jessica is asked to get to the bottom of the mystery. Angela Lansbury stars, with William Windom and Audra Lindley