Daniel "Hondo" Harrelson, a Los Angeles S.W.A.T. lieutenant, is assigned to lead a highly skilled unit in the community where he grew up. Torn between loyalty to the streets, where the cops are sometimes the enemy, and allegiance to his brothers in blue, he strategically straddles the two worlds. Hondo encourages his team to rely on communication and respect over force and aggression, but when a crisis erupts, these unflinching men and women are prepared to put their tactical training to the test.
Hondo confronts his resentment toward his ailing father when he and his sister try to convince their dad he's no longer well enough to live alone; Mumford intends to make Chris a surprising offer.
As the team works to de-escalate a hostage situation, the mission takes a dangerous turn, which impacts the team; Street tires of his complicated romantic entanglements and agrees to let Chris make over his online dating profile.
A young heiress is kidnapped for ransom; the team goes on a citywide search to bring her home before she is harmed; the team worries that Mumford is moving too fast when he announces he's getting married for the fourth time.
Hondo's informant friend is killed while seeking information for a joint SWAT and FBI task force; when the FBI task force leader acts erratically, Jessica worries the woman's behavior will endanger the team in the field.