
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.

SWAT teams up with the DEA to conduct a massive gang sweep, only to discover that a vicious cartel is planting roots in the city and endangering numerous lives; Hicks marks an important anniversary.

The team works with the DEA to stop a ruthless cartel boss waging war on the streets of Los Angeles as he exacts revenge on those who killed his son.

The team heads to Mexico to escort a fugitive back to the U.S., but things go awry and Hondo has to save an old witness tied to the case.

Hondo and Hicks desperately search for Powell, who's gone missing in Mexico City along with a thermobaric bomb capable of killing thousands; Deacon's pride gets injured in a boxing match with Rocker.