Locally born and bred SWAT lieutenant, Daniel Harrelson, is torn between loyalties when he's assigned to lead a highly trained unit in the community he was raised in.
The SWAT team works to stop a serial bomber that is using drones as detonation devices; just as Hondo settles into legal guardianship of Darryl, his home life becomes more complicated when his estranged father unexpectedly moves in.
The mayor tasks Lt. Lynch with enacting a departmental review of the squad right as they pursue the unstable and dangerous fugitive leader of an infamous doomsday cult; Luca asks the team to invest in his new passion project, a Guatemalan food truck.
Deacon's family gets caught in the crosshairs of a drug cartel when the team aims to bring down its leader; Hondo receives troubling news regarding his father; Tan is forced to go before an internal review board due to his girlfriend's indiscretion.
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.