凡是喜欢《海军罪案调查处》的朋友对《洛杉矶》其实并不陌生－－该剧的头两集（被命名为《传奇》）本季已经插在《海军罪案调查处》正剧中播出了。《洛杉矶》主要讲述了海军罪案调查处专门从事秘密监视任务的分支部门OSP（特别项目办公室，Office of Special Project）打击高科技犯罪、逮捕最危险的罪犯并维护国家安全的故事。
加入该小组的成员都是训练有素的精英特工，他们运用尖端科技手段和各种各样的假身份秘密开展工作。他们潜藏得很深，有时连家人也不知道他们的真实身份。为了完成任务，他们不顾个人安危，每天都游走于生与死的边缘。
代号G的Callen特工（Chris O'Donnell扮演）是条「变色龙」。为了打入犯罪组织内部，他可以把自己改变成任何「需要」的形象。他的搭挡Sam Hanna特工（LL COOL J扮演）是前海豹突击队成员，曾在阿富汗和伊拉克战场上接受最残酷的实战考验。Hanna还是个监视专家，善于使用各种尖端设备。当执行外勤任务的队友需要帮助的时候，他总是能在第一时间提供决定生死的重要情报。Callen和Hanna的直接上司是OSP办公室主任Lara Macy特工（Louise Lombard），她负责计划任务的制定、调配和监控，并负责在关键时刻作出关键决定。Kensi Lo特工（Daniela Ruah扮演）奉命协助OSP开展行动。她是一位前海军陆战队员的女儿，聪明绝顶，富有激情。临床心理学专家Nate Getz（Peter Cambor扮演）则相当于小组中的「智库」，他不仅能轻易攻破任何人的心理防线，而且拥有敏锐的观察力和一流的判断力，能在任务前、任务中、任务后的不同阶段快速判别嫌疑人的精神状态和心理状态。
在危机四伏的高端犯罪领域，OSP的成员唯有依靠彼此的帮助和过硬的罪案调查技巧，才能取得一个又一个胜利。
Active Measures 9.3
播出日期: 2015-09-21
运行时间: 45 min
概述: Callen embarks on a secret project, leaving Sam and the entire team in the dark. After Hetty demands his operation be shut down, the team is tasked with locating Callen before he finds himself in over his head.
Citadel 9.2
播出日期: 2015-09-28
运行时间: 45 min
概述: DEA agent Talia Del Campo turns to the NCIS: Los Angeles team for help after her partner is murdered. Also, after Kensi grows suspicious that Deeks is hiding something, he surprises her by introducing her to his mother.
Driving Miss Diaz 7.3
播出日期: 2015-10-05
运行时间: 45 min
概述: A 20-year-old Peruvian massacre is investigated after a famous fashion model, believed to be one of the survivors, becomes a potential target. Kensi goes undercover as the model's assistant, while Deeks poses as her chauffeur.
Command & Control 8.7
播出日期: 2015-10-12
运行时间: 45 min
概述: Callen and Sam are forced to work on their day off when they mysteriously receive a cell phone and the caller threatens the lives of innocent people if they don’t do exactly what he says.
Blame It on Rio 6.0
播出日期: 2015-10-19
运行时间: 45 min
概述: NCIS Special Agent DiNozzo partners with the NCIS: Los Angeles team to search the city after his prisoner escapes custody on a flight from Singapore to Los Angeles.
Unspoken 7.3
播出日期: 2015-11-02
运行时间: 45 min
概述: The NCIS team searches for Sam’s former partner, Ruiz, who disappears during an undercover operation to buy a deadly explosive.
An Unlocked Mind 7.5
播出日期: 2015-11-09
运行时间: 45 min
概述: After a former Department of Defense employee reveals government secrets to a cult, The Church of the Unlocked Mind, Kensi and Deeks go undercover in order to protect him. Meanwhile, the team must prevent the church from selling the secrets to a Chinese spy.
The Long Goodbye 6.5
播出日期: 2015-11-16
运行时间: 45 min
概述: The team searches for Jada (Ella Thomas), the woman Sam led to asylum in the United States four years ago, after she goes missing. Also, Kensi goes undercover with DEA Agent Talia Del Campo (Mercedes Mason).
Defectors 8.5
播出日期: 2015-11-23
运行时间: 45 min
概述: The team searches for a missing teenage girl who is feared to have been recruited by a terrorist organization,
Internal Affairs 9.0
播出日期: 2015-12-07
运行时间: 45 min
概述: Deeks is arrested and interrogated in connection with the murder of his former partner, while the team tries to prove his innocence.
Cancel Christmas 8.3
播出日期: 2015-12-14
运行时间: 45 min
概述: When a suspected North Korean spy is poisoned and hit by a truck carrying Christmas trees, the team must search for who is responsible for smuggling spies into the country. Also, Deeks and Kensi try to find a way to include their mothers in their Christmas plans, and Hetty notices that Granger isn’t feeling the holiday cheer.
Core Values 7.7
播出日期: 2016-01-04
运行时间: 45 min
概述: Kensi and Deeks go undercover at a decommissioned nuclear power plant as the team investigates the radiation poisoning of a Gunnery Sergeant moonlighting as a security guard there.
Angels & Daemons 8.3
播出日期: 2016-01-18
运行时间: 45 min
概述: The team investigates the murder of tech entrepreneur turned venture capitalist who secretly developed a daemon, a background computer program that allows for undetectable data collection.
Come Back 7.7
播出日期: 2016-01-25
运行时间: 45 min
概述: When Kensi and Deeks announce to the team they are moving in together, coincidentally, Hetty assigns them to protection detail for Jack, Kensi’s ex-fiancé, who is in possession of a list containing important contacts in Afghanistan that people are willing to kill to get their hands on.
Matryoshka (1) 8.0
播出日期: 2016-02-08
运行时间: 45 min
概述: In order to locate Arkady in Russia, the NCIS team goes undercover with his daughter, Anna, at a gala in Los Angeles to gain access to the Russian Consul General’s computer.
Matryoshka, Part 2 7.7
播出日期: 2016-02-22
运行时间: 45 min
概述: While they’re in Russia, Callen, Sam and Anna craft a plan to break Anna’s father and his CIA agent companion out of prison. Also, Special Agent G. Callen finally learns what the “G” in his name stands for, and in Los Angeles, Kensi and Deeks take Eric into the field on an assignment.
Revenge Deferred 7.7
播出日期: 2016-02-29
运行时间: 45 min
概述: After extensive surveillance footage of Sam’s family is found in Africa, Sam and Callen fly there to determine who is responsible and for what purpose. Also, Sam’s family is moved from their home to a safe house.
Exchange Rate 8.7
播出日期: 2016-03-14
运行时间: 45 min
概述: When a convicted Cuban spy escapes U.S. custody just before he is set to return to his country in a prisoner exchange, the team is shocked to learn that Anna helped him break out. Also, Deeks admits to Kensi that he thinks she is too messy.
The Seventh Child 9.7
播出日期: 2016-03-21
运行时间: 45 min
概述: Callen and the team try to save a child in imminent danger who has been brainwashed by a terrorist cell. Also, Deeks and Kensi discuss having children.
Seoul Man 7.0
播出日期: 2016-03-28
运行时间: 45 min
概述: While assigned to protective details for the commander of the Pacific Command, the team searches for a North Korean spy.
Head of the Snake 8.3
播出日期: 2016-04-11
运行时间: 45 min
概述: After Operational Psychologist Nate Getz fails to check in with Hetty while working undercover on a mission linking organized crime to terrorism, the team learns he is working with an infamous crime leader,
Granger, O. 7.3
播出日期: 2016-04-18
运行时间: 45 min
概述: As Granger escorts Jennifer Kim back to Los Angeles, he interrogates her regarding a North Korean spy and she admits to knowing he is her father.
Where There's Smoke... 8.0
播出日期: 2016-04-25
运行时间: 45 min
概述: Sam and Callen go undercover as firefighters when top secret information about suspected terrorists is stolen from a secure Department of Defense container at the site of a fire.
Talion 9.0
播出日期: 2016-05-02
运行时间: 45 min
概述: Sam receives a distress code from Aiden saying that his school is being taken over by an extremist group.
