Major Crimes discovers that an apparent murder-suicide may actually be a double homicide, and Rusty receives a frightening anonymous letter connected to his upcoming testimony.
A car chase ends with the discovery of a driver covered in dried blood, but is he the victim of tough circumstances or connected to a Mexican drug cartel?
Flynn and Provenza end up in hot water when a witness in their care becomes the main suspect in a murder. Raydor and the rest of the team become curious about Rusty's new study partner Kris.
While Major Crimes investigates the murder of an ex-con drug dealing identity thief, Sharon's long-absent husband makes an unexpected return from Las Vegas.
A prestigious swim coach claims to have shot and killed a Hispanic intruder in his house, but Major Crimes soon discovers a shocking connection between the two men as well as a number of other more disturbing crimes.
After a landlord is killed, Major Crimes' investigation quickly focuses on his elderly tenants, who all worked together on a 1970s detective TV program.
Major Crimes needs help from the Feds when they discover that the victim in a mob-related murder was an FBI informant, a case that hits home especially hard for Rusty.
Major Crimes searches for a high school drug dealer after two teens die from drugs laced with cyanide, and Rusty weighs his new living options after he is busted.
A sheriff's deputy becomes the prime suspect when the serial rapist who victimized his daughter is killed, and Rusty meets with a therapist who can also teach him a few lessons in chess.
A man is killed over a bad investment, but Major Crimes finds several possible suspects. Meanwhile DDA Rios comes to blows again with Sharon and Rusty.
Major Crimes spends their Christmas vacations investigating the murder of a baseball scout, while Rusty's therapist asks him some tough questions about his mom.
A prominent politician's son is murdered in a gang neighborhood, which sparks a new interest in an earlier crime. Meanwhile, Rusty suddenly takes an interest in why each detective joined the squad.
The son in a father/son used car dealership is killed in a car explosion on the lot, and Rusty tries to pass his field training for his undercover assignment.
The man sending notes to Rusty on behalf of Philip Stroh turns out to be a dangerous serial killer, causing Rusty to be in more danger with his sting operation than Major Crimes once thought.
