
When "The Closer" came to a close, doors opened for the detectives in the Los Angeles Police Department's Major Crimes Division, with the biggest opportunity presented to Capt. Sharon Raydor. The captain is now the boss, taking over a department that hasn't forgotten her history of internal investigations targeting them and their former boss, Deputy Chief Brenda Leigh Johnson. As Raydor attempts to mend fences and gain the trust and confidence of her detectives -- her biggest foe in that regard is Lt. Provenza -- she leads a unit that works more closely than Johnson ever did with other police and prosecutors to build airtight cases.

The Major Crimes division works to stop a serial killer who has been targeting female sex workers; Captain Raydor seeks the help of a consultant; Stroh gets closer to achieving his deal.

The squad investigates a double homicide that is related to a string of home invasions; Sanchez attempts to reintegrate after his suspension; Captain Raydor makes a fateful choice in the life of her adopted son.

A dead body pops out of a trunk at the end of a car chase; the squad must untangle connections between a chef, a psychiatrist and a bankruptcy lawyer; Rusty continues his attempt to identify the murder victim.

The squad is under pressure during a kidnapping case; DNA evidence proves that Rusty is closely connected to the justice system.