Walker continues to try to reconnect with his family but finds that his kids have developed new routines with Liam. Back at work, Captain James tells Walker he needs to get recertified to be a Ranger, but old memories of Emily hinder his progress. Micki investigates a suspicious fire.

Walker’s life gets more complicated when his childhood best friend, Hoyt Rawlins, returns to town. Abeline is thrilled to have Hoyt home but Geri has conflicted feelings for her ex-boyfriend. Meanwhile, Micki has her suspicions about the real reason Hoyt returned to town.

Micki is uncomfortable with the spotlight Capt. James puts on her during a current investigation. Walker talks to Liam about their parents and learns there was trouble while he was away. Trey applies for a new job in town.

Walker is forced to resume his undercover identity to keep his family safe. Micki gets caught up in Walker's old case. August threatens to blow his father's cover, and Trey starts his new job.

Captain James and Liam follow up on a tip regarding Emily’s murder. The duo head to Mexico for more answers but decide to keep their trip a secret from Walker. Meanwhile, Trey escorts Stella, August and the girls soccer team to an away game but when things take a dangerous turn Trey, Walker and Micki have to team up to save the kids. Micki learns some shocking news.

A tornado touches down in Austin and it’s all hands on deck to keep the kids and community safe. Walker, Micki and Trey rush to the school where Stella, August and Ruby are at a school dance. Bonham and Abeline stop at a store for supplies where old memories resurface. Meanwhile, Liam and Bret get trapped in an elevator.

Micki’s real mother, Mercedes, tries to make amends with her daughter but Micki doesn’t want anything to do with her. Walker steps in to help and lands in a heap of trouble. August suffers from PTSD after what happened at the Ranch.

Walker and Micki investigate a bomb threat at the school that targeted Liam and Stan. Abeline and Bonham plan a vow renewal, and Trey’s mother comes for a visit.