An old friend returns with a shocking surprise for everyone, and Cordell is forced to come to terms with the decisions he's made and how it's affected the ones he loves most. In the aftermath of the devastation caused by Grey Flag, Trey's left feeling like an outsider, but a new case will force he and Cassie to overcome their issues.
Texas Ranger Cordell Walker, a widower and father of two with his own moral code, returns home to Austin, TX, after being undercover for two years, only to discover there's harder work to be done at home. As Walker attempts to reconnect with his creative and thoughtful son August and his headstrong, somewhat rebellious teenaged daughter Stella, he finds that he needs to navigate clashes with his family - Liam, Walker's ADA brother who stepped in during Walker's absence, his perceptive mother Abeline and his traditional rancher father Bonham.
Walker's former colleague, Larry James, is now his Ranger Captain. And Walker finds unexpected common ground with his new partner Micki Ramirez, one of the first women in Texas Rangers' history while growing increasingly suspicious about the circumstances surrounding his wife's passing.