Walker

Walker sets out on a mission; August opens up to Geri and Liam; Bonham notices something is off with Abby; Luna introduces Cassie to an old friend.

Cassie, James, Trey and Luna start to put together the pieces of the Jackal case, while no one has heard from Walker.

Walker tries to make up for lost time and wants to be what Geri deserves; Cassie and Trey have their final interviews for the lieutenant position; Stella discusses with Liam what she may want for her future.

Geri is upset with Walker for not opening up to her; Cassie, Trey and James conduct more interviews; Bonham and Abby realize they both need to give a little with their plans for the future.

Cassie, James, Trey and Luna start to put together the pieces of the Jackal case, while no one has heard from Walker.

Walker sets out on a mission; August opens up to Geri and Liam; Bonham notices something is off with Abby; Luna introduces Cassie to an old friend.

Walker tries to make up for lost time and wants to be what Geri deserves; Cassie and Trey have their final interviews for the lieutenant position; Stella discusses with Liam what she may want for her future.

Geri is upset with Walker for not opening up to her; Cassie, Trey and James conduct more interviews; Bonham and Abby realize they both need to give a little with their plans for the future.

A feisty officer Perez mistakes Cordell for a suspect; Trey offers to help Liam with a project; Colton struggles with his feelings for Stella.

When he hears that Serano is out on bail, Dan panics and asks Liam for help; Geri decides to have an open mic night at the Side Step and encourages August to hit the stage.

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

Things are tense between Walker and Liam after Liam called in a false warrant on Dan Miller; Capt. James informs the brothers that Serano's lawyers are using Liam's mistake as a way to set the criminal free.

Micki comes clean to Trey about her past and they question what it means for them in the future; 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.

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.

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.

Walker invites Gale Davidson to participate in the chili cook-off at the Side Step to try and make amends after years of their families feuding; Micki and Trey work on reconciling their relationship when she comes home after her undercover operation.

Walker has concerns over Micki going too deep under cover and wants to keep a close eye on her and the possible new informant; Capt. James and the new district attorney work together trying to close the case to bring Micki home.

Walker realizes his life is at risk and confronts Capt. James, who confesses to him the real reason Micki went undercover; the Davidsons return home, which sets Abeline on edge.

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

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

Capt. James leads Micki and the team into a drug bust with a dirty cop, Officer Campbell; after Campbell is inexplicably set free, the cop targets the captain's son, DJ, in retaliation; Walker gives Trey advice on his future.

Micki's real mother tries to make amends with her daughter; August suffers from PTSD after what happened at the Ranch.

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

Walker's past comes back with a vengeance and it threatens the very thing he loves the most -- his family.

Flashbacks reveal the days right before and after Emily's death and how the entire Walker family dealt with the sudden, tragic loss.

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

Liam turns to Bonham for advice on a career move; 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.

Walker and Captain James investigate a high-stakes poker game in which one of the players may have information on Emily's killer; Micki takes August and Stella on an unusual adventure.

A tornado touches down in Austin; Walker, Micki and Trey rush to the school where Stella, August and Ruby are at a school dance; Liam and Bret get trapped in an elevator.

Captain James and Liam follow up on a tip regarding Emily's murder; Trey escorts Stella, August and the girls soccer team to an away game, but things take a dangerous turn; Micki learns some shocking news.

When Geri decides to sell the bar, it throws Walker for a loop; Micki is shocked when her mother drops in unexpectedly.

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; Trey starts his new job.

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'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; Micki has suspicions about the real reason Hoyt returned to town.

Walker continues to try to reconnect with his family, but finds that his kids have developed new routines with Liam; Capt. James tells Walker he needs to get recertified to be a ranger, but old memories of Emily hinder his progress.

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.