The SWAT team races to find a militant group that escaped their capture months earlier, when the criminals take hostages in exchange for a $500 million ransom from five corporations they deem corrupt. Also, Hondo’s emotional turmoil begins to affect his team leadership.

The SWAT team races to locate the next place a lone gunman will strike while he is at large in Los Angeles. Also, Hondo takes some time away from the team to pursue an investigation that hits close to home, and Jessica is presented with an unexpected opportunity.

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. Also, Hondo reflects on his personal life choices as he helps his father through a medical crisis and Chris’ relationship with Kira and Ty reaches a critical juncture.

The SWAT team searches for a group of drug smugglers who crash a plane in a Los Angeles suburb and scatter, after a joint mission with the DEA to stop the shipment goes awry. Also, Hondo tries to make amends with Nichelle, Luca experiences anxiety about his return to the field, and Deacon hesitates when asked to speak to a group of recruits about mental health.

Hondo is conflicted when the mayor asks him to be the public face of a new outreach campaign meant to improve the LAPD's stature within the Black community. Also, the team's search for a lone bomber reminds Tan of a difficult chapter in his childhood, and Chris pushes herself even further to surpass Street and Tan in a SWAT leadership competition.

The team works together to hunt down a deadly band of mercenaries hired by a wealthy CEO trying to leave the country before he's arrested for running a massive Ponzi scheme; Hondo is forced to confront his changing relationship with Darryl.