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.

It's an exciting day for Liam, Stella and the horse rescue as opening day is upon them! Then the boys are off for a camping trip while the ladies plan a relaxing day at the spa...but nothing ever goes as planned.

It's Walker's birthday and Geri is pulling out all the stops, but her plans are thwarted.

Walker, Cassie and Trey are charged with keeping an 80-year-old grandmother and witness safe.

Trey and Liam try to help Walker figure out his next steps with Geri; Liam confides in Walker.

Walker's lies about the Jackal case finally catch up to him; Stella makes a shocking realization.

Geri is presented with an interesting offer, and Liam jumps in to help.

Walker, Trey and Cassie prepare for what Captain James has in store for them at HQ.

Stella goes to Bonham for self-defense training; August excels in his boot camp training.

Stella continues her search for the necklace and starts putting together the pieces of the mystery.

James, Cassie and Trey appear to make some headway in their investigation.

Walker sets out on a mission; August opens up to Geri and Liam; Luna introduces Cassie to a friend.

Cassie, James, Trey and Luna start to put together the pieces of the Jackal case.

Geri is upset with Walker for not opening up to her; Cassie, Trey and James conduct more interviews.

With the Sidestep now in their name, Walker, Stella and August put their stamp on the place. Liam turns to Bonham for advice on a career move, while Micki and Trey work through the aftermath of his injuries after the hurricane. Stella confronts Clint about Trevor and his response prompts Stella to make a dangerous decision that will leave a permanent mark on the Walker family.

Cordell Walker returns home to Austin, Texas, after being undercover for two years, only to discover there's harder work to be done at home.

The show flashes back to the days right before and after Emily's death and how the entire Walker family dealt with the sudden tragic loss.

Walker attempts to make this the most memorable Thanksgiving ever in the hopes of luring Stella to return home, but when the family's annual "Circle of Thanks" turns into a circle of grievance, tensions bubble over- leaving things worse off than they began, with one member of the Walker family being rushed to the hospital.

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.

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.

Walker and Captain James investigate a high stakes poker game where one of the players may have information on Emily’s killer. The night takes a turn when Geri shows up to join the game. Meanwhile, Micki takes August and Stella on an unusual adventure.

Walker and Geri are both unsure of their feelings for each other after their kiss and things get very complicated when Hoyt comes home from prison. However, the welcome home party is interrupted when Micki and Walker get word that Clint West is on the run.

Walker takes Stella and August on a road trip to discuss some devastating news. Meanwhile, Captain James enlists the help of Micki and Trey to find a missing military veteran.