Sgt. McCluskey recruits Toby on a case involving smuggled weapons, which takes a turn for the worse when an undercover operative winds up dead.

Toby and Michelle investigate a suspicious homicide when a Russian Consul General is found dead and his son, protected by diplomatic immunity, confesses to his murder.

Sgt. McCluskey, with the help of Toby, tries to determine if a mob boss is really behind the murder of Will Sterling, the business partner of a celebrated restaurant chef.