
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 fake 911 call puts Hondo and the SWAT team on the hunt to stop bombing attacks; Street's relationship with his mother jeopardizes his career; Jessica is thrown a curveball by the president of the police commission.

An earthquake hits Los Angeles while the team is engaged in a standoff with human traffickers holding child hostages; Jim Street has trouble adjusting to his new life as a patrol officer.

The SWAT team tries to find a woman and her son who are running from an international drug cartel; Hondo makes a distressing discovery about his incarcerated friend's son; Luca mulls over a government program.

Deputy District Attorney Nia Wells enlists the team to protect the jurors of a high-profile bribery trial after some of them are targeted by organized crime in a series of fire-bombings.