
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.

A tragic mission leads each member of the team to contend with their emotional distress in varied ways.

Mumford returns to work and investigates a 15-year-old cold case that holds a personal connection and leads to the discovery of a dangerous drug ring; Hondo is suspicious of Leroy's motives.

A high-stakes domestic disturbance involving a father and his two young daughters leads the team to race against the clock to save a group of international activists.

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.