NCIS: Los Angeles - Season 4

From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.

Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge Advocate General) division, the elite legal wing of officers that prosecutes and defends those accused of military-related crimes. He works closely with Lt. Col. Sarah Mackenzie, and together they do what needs to be done to find the truth.

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los Angeles Police Department, poses undercover from mob girl to prostitute.

The brilliant and eclectic team of U.S. NCIS Agents and the Australian Federal Police (AFP) are grafted into a multi-national taskforce to keep naval crimes in check in the most contested patch of ocean on the planet.

Vinnie Terranova does time in a New Jersey penitentiary to set up his undercover role as an agent for the OCB (Organized Crime Bureau) of the United States. His roots in a traditional Italian city neighborhood form the underlying dramatic base throughout the series, bringing him into conflict with his conservative mother and other family members while acting undercover as syndicate enforcer.

The show follows Crime Scene Investigators working for the Miami-Dade Police Department as they use physical evidence, similar to their Las Vegas counterparts, to solve grisly murders. The series mixes deduction, gritty subject matter, and character-driven drama in the same vein as the original series in the CSI franchise, except that the Miami CSIs are cops first, scientists second.

A formerly blacklisted spy uses his unique skills and training to help people in desperate situations.

Jack Regan, an unethical officer of the Flying Squad, uses unorthodox methods to pursue criminals with the help of his partner, George Carter.

Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con sent to the slammer for a crime he didn't commit, Rockford takes on cases others don't want, aided by his tough old man, his lawyer girlfriend and some shady associates from his past.

Every villain has a noble cause, and every hero has a dark side. Detective Ryan Lopez is a rising star in Los Angeles' elite Gang Task Force. What the world doesn't know is that long before Ryan became a cop, he pledged allegiance to a different band of brothers – a powerful Latino gang called Los Angelicos. When Ryan's best friend and police partner is senselessly killed by a notorious gang member, Ryan teams up with longtime Task Force member Cassius Green who has been at the forefront of the city's war on organized crime. In this war between law enforcement and gangs, the series explores how only people who really know the streets can win the battle on the streets.