When Hondo's ne'er-do-well cousin, Andre, goes AWOL from his Marine base during basic training, Hondo, Deacon and Daniel Sr. take a road trip to get the kid in line. But when they learn that Andre witnessed an illegal arms deal involving stolen military weapons, Hondo realizes there's a darker explanation for Andre's disappearance. And Alfaro plots to work outside the law when he discovers that his mother's long-ago abusive ex is back in her life, repeating the unhappy ways of the past.
Los Angeles S.W.A.T. lieutenant Daniel "Hondo" Harrelson 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 these 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.