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.

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.

When Geri decides to sell the bar, it throws Walker for a loop. With so many memories attached to the bar, he asks Geri to reconsider and reminds her of all the good times they’ve had there with Emily and Hoyt . Meanwhile, Micki is shocked when her mother drops in unexpectedly.

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.

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.

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.

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’s past comes back with a vengeance and it threatens the very thing he loves the most – his family.

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.

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.

Captain James leads Micki and the team into a drug bust with a dirty cop, Officer Campbell at the center. However, after Campbell is inexplicably set free, the cop targets the Captain’s son, DJ , in retaliation. Walker gives Trey advice on his future.

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.

Walker’s world is shattered after receiving shocking news that changes everything.

Walker realizes his life is at risk and confronts Captain James who confesses to him the real reason Micki went undercover. The Davidsons' return home sets Abeline on edge as there is dark history between the two families.

Walker has concerns over Micki going too deep undercover and wants to keep a close eye on her and the possible new informant. Captain James and the new District Attorney work together trying to close the case to bring Micki home. Stella and Colton Davidson team up to solve a mystery while under the watchful eye of Trey and come across an interesting obstacle on their way home.

Walker invites Gale Davidson to participate in the chili cookoff at the Side Step to try and make amends after years of their families feuding, however Abby isn't too pleased with the gesture. Micki and Trey work on reconciling their relationship when she comes home after her deep undercover operation.

Walker tells his family about the surveillance cameras in their home and partners with Denise to lure out whoever is watching them. Liam doesn't trust Denise, or her husband Dan, which frustrates Walker who is trying to mend the rift between the families. Micki continues to deal with the ramifications of her time undercover.

Tensions run high when Walker and Liam investigate a cold case together. Micki, still on desk duty, is working through her grief while slowly easing her way back into the field. Trey tags along for a fishing trip and gets a lesson on love. August makes a discovery that could lead to answers about the feud between The Walkers and The Davidsons.

Micki comes clean to Trey about her past and they question what it means for them in the future. After a heartbreaking talk, Micki realizes it might be time to start a new chapter. Meanwhile, Walker and Liam put their differences aside and agree to trust each other when Denise asks them to investigate a case. Bonham dresses up as Santa Claus for the annual holiday party.

Things are still tense between Walker and Liam after Liam called in a false warrant on Dan Miller. However, things take a turn for the worse when Captain James informs the brothers that Serano’s lawyers are using Liam’s mistake as a way to set the criminal free, putting the entire Walker family in danger.

While setting up protective detail on Trey, Captain James is shot and left in critical condition. Walker takes on the role of interim Captain and turns to an unlikely source for help.

When he hears that Serano is out on bail, Dan panics and asks Liam for help. Liam doesn't trust Dan but Dan makes him a tempting offer that would put Serano behind bars for good. There is just a small catch - Liam can't tell Walker what's going on. Meanwhile, Geri decides to have an open mic night at the Side Step and encourages August to hit the stage.

A feisty officer Perez mistakes Cordell for a suspect. Trey offers to help Liam with a project. Meanwhile, Colton is struggling with his feelings for Stella.

When confronted by the Davidsons, Liam shares an old land survey which could spell trouble for the Walker family, and Bonham reveals one truth from the past while covering up another. Meanwhile, Cordell has news of his own he would like to share with the family if he can get the chance.

Cordell reaches a breaking point with Denise who sets her sights on revenge and the tensions between the Walker and Davidson families finally hit a fever pitch.

While Geri does her best to keep the Walker family’s collective chins up, Walker and Cassie look for any clues to help Bonham in his hour of need.

Cordell and the Walker family carry on with a day at the Rangers fair, but it's not all fun and games when Cassie runs into familiar faces from her past. Meanwhile, Abeline attempts to clear the air with Geri and Colton tries a new approach with Stella.

Cordell needs the help of someone from his past, but can they be trusted? Meanwhile, Trey shows James and August a new way to deal with some of life's frustrations.

The Walkers pull out all the stops to celebrate Abeline and Bonham's anniversary. Cassie finds a piece of her past and Cordell needs a favor from Geri.

Twyla is tapped to assist the Rangers on a case as she and Cordell are beginning to grow closer. Meanwhile Stella re-evaluates her feelings for Todd and Colton while Geri extends an olive branch to Denise.

Cordell and James make a shocking discovery. Meanwhile, Stella and August have a traumatic afternoon and Liam takes a concern to the Davidson’s door.

Stella and Colton plan a Walker / Davidson family dinner. Meanwhile, Liam gets an unlikely ally when trying to prove that the Davidson's were up to no good on the day Cordell raced for the ranch and Cassie vows to learn the truth about the last case her previous partner was working on.

Gale coming clean to Geri about the past forces Cordell to relive a part of his he'd buried long ago, and Trey considers Captain James' latest offer.