The SWAT team works with Lt. Piper Lynch to hunt down a serial bomber who is using drones as bombs. Meanwhile, Hondo's first day as a legal guardian to Darryl becomes complicated when his father unexpectedly moves in.

The mayor asks Lt. Lynch to enact a department review of the SWAT team while hunting down a fugitive leader of an infamous doomsday cult. Also, Luca asks the team to invest in his new passion project: a Guatemalan food truck.

The latest addition to the team is already treading on thin ice with the commander when she circumvents the chain of command in an effort to take down a counterfeit ring.

Deacon's family is squarely in the crosshairs of a drug cartel operating in LA when SWAT targets their leader who has CIA immunity.

A Jamaican gang highjacks a truck full of assault weapons destined for destruction, intending on selling them to multiple gangs in Long Beach; Luca's Guatemalan food truck plan starts to gain momentum; Hondo's Dad gets a diagnosis

The Harrelsons engage in a tense family reunion when Hondo's older sister begrudgingly arrives in Los Angeles to see their sick father.

S. W. A. T. pursues a gang that's planning a dramatic armed robbery. Chris worries about her relationship, while Street resolves to tell Hicks that he's dating his daughter.

Commander Hicks agrees to replace a seriously wounded sheriff's deputy in a hostage crisis when a family resisted eviction after having lived four generations on the property.

The SWAT team joins forces with the Los Angeles Organized Crime division to recover an abducted officer.

The members of the SWAT team are tasked with securing a former Somali warlord wanted for war crimes; Streets' foster brother asks for help with his corrupt boss; Hondo's Dad attempts to make amends with his Mom.

Street is caught between his duty to S.W.A.T. and his foster brother. Also, S.W.A.T. goes after a ruthless gang that employees deadly force against casinos.

Hondo and the rest of the team rally behind Street when he puts his life in jeopardy trying to help his foster brother Nate breakaway from a drug ring

Hondo, Deacon, Tan and Commander Hicks chase an extradited fugitive across Tokyo when he escapes custody. The rest of SWAT search for any contacts the fugitive cultivated while in LA; Street isolates himself in the wake of his tragic loss.

The S.W.A.T. searches for a link to a misogynistic gunman. Luca works on a homicide in his neighborhood. Lt. Lynch wants a day-in-the-life interview with a female S.W.A.T. member.

The team has to protect a hotel full of civilians after a gang bust goes awry. Luca's brother, a freelance journalist, crosses police lines to shoot footage.

Hondo and the team race to locate their former leader, Buck Spivey when they fear he's trying to harm himself.

An escaped narcotics convict that Tan arrested is pursuing bloody revenge on all those who busted him in a conviction that becomes increasingly questionable as the manhunt for him proceeds.

SWAT pursues a couple of murderous criminal lovers in pursuit of stolen loot, but the manhunt is complicated by bounty hunters also after them.

The S.W.A.T. searches for drug smugglers after their plane crashes. Hondo tries to woo back Nichelle. Luca's first day back comes with anxiety.