After a shocking revelation, Cordell and Cassie set off to find out more about Grey Flag's nefarious plans. Liam's and Stella's plan for the horse rescue appear to finally be coming together when a big-time philanthropist offers her support, and the Walker family joins forces to move the project along quickly. Trey's new assignment lands him in unfamiliar territory and a new partner could compromise his focus.
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.