When the flooding of a long-buried cemetery unearths evidence of multiple murders in San Antonio, newly-elected Sheriff Hondo Velazquez must tackle a cold case that sparks memories he thought he'd buried long ago.

Three years after the events in Brooks County, a cold case pulls Sheriff Hondo Velazquez back to San Antonio and back into memories of his childhood as an orphan. He can't let it go. As the investigation takes Hondo deeper into the past, his new wife, Magnolia Moss, pulls him into their future with talks of adoption.

Nights spent investigating the decades-old deaths of children and days spent interviewing at adoption agencies takes a toll on Hondo as the case turns hard. A present-day killer is on the loose, seemingly connected to the past orphanage killings.

Someone is out for revenge against the adults who harmed him. A boy. A survivor. But also a killer.

As detectives begin to piece the case together, they realize there's only one man who can stop the vigilante, someone who survived the same past, the same history of violence: Hondo. As he and Magnolia struggle to maintain control over their own lives, they're faced with an unimaginable decision that threatens to unravel the thread of the life they've created together.