Hondo and the SWAT team spread out across Los Angeles in pursuit of four escaped convicts, including a violent criminal Jessica helped bring to justice, before department rival Mumford and his team beat them to the collars. Also, Hondo’s new role as team leader is called into question when Street displays a flagrant disregard for SWAT protocol.
When a series of home invasions are committed by SWAT imposters in an upscale neighborhood, Hondo and the team suspect the burglarized families are all hiding something. Also, when Deacon and Luca are assigned to protect a visiting professional hockey player who is receiving death threats, his penchant for trouble becomes a complication.
Hondo and the SWAT team are forced to work over their Christmas vacation when a drug cartel is out for blood after their cache of gold bars is stolen. Also, Jessica draws the attention of Michael Plank, president of the Police Commission, when she approaches him with her ideas on how to improve the SWAT division.
When a misconduct complaint filed against Hondo gets him taken off active duty, Deacon steps up to lead the team in finding a robbery crew that is hitting marijuana dispensaries. Also, when Tan notices a similarity between the current robberies and a case from his time with Hollywood LAPD, he asks for help from an informant with whom he has a complicated history.
Hondo and the SWAT team join forces with the FBI on a manhunt to find members of a militia group planning a domestic terror attack by weaponizing cyanide. Also, as Jessica’s new police initiatives with Michael Plank, president of the police commission, move forward, she braces herself for the negative impact the plans could have on her relationships within the department.
Hondo and Jessica’s secret relationship comes to a crossroads when Michael Plank, the president of the police commission, discovers their affair. Also, when Hondo and the team assist with the federal investigation to bring in an undocumented fugitive, they find themselves at the center of a citywide immigration debate.
The job becomes personal for Hondo when his criminal informant friend is killed while seeking information about a robbery crew that a joint SWAT and FBI task force is trying to capture. Also, when the FBI task force leader acts erratically, Jessica worries the woman’s behavior will endanger the team in the field.
As Hondo and SWAT work to de-escalate a hostage situation in which an ex-convict is holding a local family captive, the mission takes a dangerous turn that impacts the team. Also, when Street tires of his complicated romantic entanglements, he agrees to let Chris make over his online dating profile.
Hondo confronts his long-held resentment towards his ailing father, Daniel Harrelson, Sr., when he and his sister, Briana, try to convince their dad he’s no longer well enough to live alone. Also, when the SWAT team works as patrol officers for a day, Chris is partnered with Mumford, who intends to make her a surprising offer.
A fake 911 call puts Hondo and the SWAT team on the hunt to stop a white supremacy group from executing bombing attacks on local communities. Also, Street’s relationship with his recently paroled mother, Karen, jeopardizes his career, and Jessica is thrown a curveball by her colleague, Michael Plank, president of the police commission.
The SWAT team engages in a standoff with human traffickers holding child hostages when a major earthquake hits Los Angeles during their operation and compromises the takedown. Also, while Hondo forms an unexpected personal connection with Deputy District Attorney Nia Wells, Jim Street has trouble adjusting to his new life as a patrol officer.
The SWAT team works together with their former member Jim Street to find a woman and her son who are running from an international drug cartel. Also, Hondo makes a distressing discovery about his incarcerated friend’s teen son, and Luca mulls over a government program that allows officers to buy homes in the at-risk neighborhoods they police.
Hondo suspects an ulterior motive when Eric Wells, a U.S. marshal who is the estranged husband of his romantic interest, Deputy District Attorney Nia Wells, requests the S.W.A.T. team’s help with apprehending a fugitive who is robbing drug cargo shipments. Also, Jessica is forced to implement departmental budget cuts, and Street makes a heartbreaking discovery about his mother, Karen.
Hondo and Lina go undercover to infiltrate and take back a cruise ship that’s under siege by drug smugglers who will execute passengers if they detect police on board. Also, Street enters the SWAT Training Academy and finds the competition fiercer than he expected, with the applicants all vying for the one SWAT position available for the year.
The SWAT team tries to determine the next diamond dealer to be robbed by a group of highly organized thieves executing heists across downtown Los Angeles. When Hondo is emotionally affected by a suspect’s death during the case, he seeks comfort from his mother, Charice. Also, while Street worries that Luca, his SWAT training academy instructor, has a personal vendetta against him, Chris contemplates an unorthodox relationship offer from the new woman she’s dating.
The SWAT team hunts for a band of criminals re-enacting the crimes of the infamous Symbionese Liberation Army, whose decades-old offenses made local and national news. Seeking expertise on the original crime spree in the 1970s, Luca and his father, Carl Luca, review the files of Luca’s late grandfather who worked for SWAT during the era of the original crimes. Also, Hondo experiences discrimination from a fellow officer during a SWAT training seminar for local law enforcement in Arizona.
The SWAT team sets out to recover dozens of DNA evidence kits stolen from an LAPD crime lab and bring in the crew responsible, after a close friend of Captain Hicks is harmed during the theft. Also, financial strain at home makes it difficult for Deacon to focus on his role as leader of the SWAT division’s annual holiday toy drive.
Jessica and Chris go undercover in Mexico, alone and without back-up, to save a Mexican federal agent kidnapped by a drug-dealing gang that Jessica helped bring to justice years before. Also, Hondo’s mother, Charice, worries he’s under emotional strain when he engages in a series of small home renovation projects in her home.
The SWAT team pursues a group of unknown assailants responsible for a patrol officer’s death before tension in the city between the police and the community explodes. Also, as Chris reels from the revelation that she knew the patrol officer who was killed, Deacon and his wife, Annie, prepare to welcome their newest child.
The SWAT team struggles to maintain peace on the eve of a Los Angeles LGBTQ pride festival after a hate crime sparks citywide anger that ignites further violence. As Chris grows anxious for her fellow LGBTQ community members calling for retribution, the festival reunites Commander Hicks with JP, his estranged gay son. Also, Street worries his mother will be sent back to prison after she fails to check in with her probation officer, and Deacon gets unexpected medical news regarding his newborn daughter.
The SWAT team discovers a new version of PCP with ties to an escaped drug dealer who created a version that ravaged the city decades earlier. Tan’s personal ties to the case emerge when he brings in his mentor, Ben Mosley, the former lead detective on the original drug case, to help. Also, Chris weighs a major decision regarding her romantic relationship with Kira and Ty, and Hondo’s patience is tested by his new familial responsibilities.
The SWAT team goes in pursuit again of the militant group The Emancipators when the criminals hold a live stream kangaroo court to publicly execute city politicians. Also, Hondo fights to lift Darryl’s spirits; Deacon feels unworthy as he prepares to receive one of the LAPD’s highest honors; and Street catches a break in the search for his missing parolee mother, Karen Street.
The SWAT team works with Lieutenant Piper Lynch, a senior LAPD Hollywood Division officer, when the mayor assigns her to oversee city departments joining forces to stop a serial bomber using drones as detonation devices. Just as Hondo settles into legal guardianship of his teen charge, his home life becomes more complicated when his estranged father unexpectedly moves in.
Deacon’s family gets caught in the crosshairs of a drug cartel when he and the SWAT team aim to bring down its leader, a former foreign rebel force leader running drugs in plain sight via a local flower market. Also, Hondo receives troubling news regarding his father, and Tan is forced to go before an internal review board due to his girlfriend’s indiscretion.
Street reconnects with his estranged foster brother to help a joint investigation between SWAT and the Long Beach PD when criminals steal a mass arsenal of LAPD assault rifles. Hondo finds himself at odds with his father over the elder man’s declining health. Luca is overwhelmed when the entire team reconsiders becoming investors in his food truck.
The Harrelsons engage in a tense family reunion when Hondo’s older sister, Winnie, begrudgingly arrives in Los Angeles to see their sick father for the first time in decades. The SWAT team searches for an abducted Middle Eastern human rights activist. Luca’s food truck business hits a snag. Street worries that dating Captain Hick’s daughter, Molly, will negatively impact his career.
The SWAT team searches for thieves who are on the run with a high-tech thermal lance that can cut through almost anything. To find the thieves, SWAT works to identify their target. Also, Chris confronts an imbalance in her relationship with Kira and Ty.
The SWAT team engages in tense negotiations with a family that takes a local officer hostage when they’re evicted from their home due to eminent domain. Hondo reflects on his personal life choices as he helps his father through a medical crisis. Chris’ relationship with Kira and Ty reaches a critical juncture.
The team joins forces with the Los Angeles Organized Crime division to recover an officer abducted during a failed undercover operation. Chris struggles with how to comfort the kidnapped officer’s parents when she is restricted from giving them certain details of the investigation.
The SWAT team's task to provide security for a warlord is threatened by assassins determined to take him out before he's extradited by the International Criminal Court. Also, Hondo's father, Daniel Sr. tries to make amends to his mother, Charice. Street's foster brother, Nate asks for his help with a corrupt boss and Deacon reluctantly explores therapy for his daughter, Lila.
Street is caught between his duty to SWAT and his commitment to his foster brother, Nate, when Nate is ensnared in a criminal enterprise that could ruin them both. Also, the SWAT team goes after a ruthless crew that uses deadly force while stealing from card casinos, and Buck approaches Deacon to partner on a private security opportunity.