During a bank robbery in Dallas, Walker's partner is killed. Trying to solve this case, Walker finds out that this raid could have been only a test for a much bigger goal: simultaneously robbing four banks lying next to each other. No one believes him. After a bomb explodes in a far away bank, which has just gotten a valuable load, everyone goes there. When the actual raid starts Walker must face the gang alone.
Walker must help Alex when she is stalked by an ex-convict whom she convicted back in the day.
When a powerful Japanese Yazuka is killed by Congressman Cabe's assistant, the Yazuka come to America, seeking revenge, and Walker and Trivette are assigned to protect the congressman.
After he robbed a bank Roy accidentally gets arrested because of a minor offense, but has to be freed after a short time. Walker and Trivette stay close on his heels but they are not the only ones. The bounty hunter Maxwell is also behind Roy. When Roy is (unprovable) killed by Maxwell, Walker and Trivette follow Maxwell, who is now behind Roy's partner Ned - who has the stolen money - and doesn't stop at nothing to get the money.
Trivette goes undercover into jail to infiltrate and destroy a drug ring. During a hurricane the transport crashes; the prisoners can escape and are hiding with hostages in a remote hotel. Among the fugitives: Trivette. When the transport is overdue Walker starts searching and lands up in the hotel where he goes for the prisoners one by one with the help of a handicapped person.
A desperate man named Hank Berigan asks Alex for help in persuading his daughter, Amy, to leave the cult that she has joined. When Alex goes to the cult, she is imprisoned within, realizing that once someone enters the cult, they are never allowed to leave.
Walker receives a plea for help when a woman named Frances tells him how her husband, Billy, never returned home last night. Upon meeting Billy's probation officer, a man by the name of David Kilmer, Walker suspects something is very wrong.
Walker and Trivette are assigned to escort Cat, a woman who is to testify against a gang leader, Trigger James, safely to her destination. However, the group is seperated, and by the time Trivette and Cat reach said destination, they've got a nasty surprise awaiting them...
Walker is not able to arrest Mick Flanders because his sister is in the Witness Protection Program. Mick, proving that he's invincible, kidnaps a boy named Archie who was staying at Walker's ranch.
Walker investigates the murder of a veterinarian who was trying the find the cause of death of several unusual animal deaths.
A Texas Ranger wannabe tries to upstage Walker by capturing prison escapees, buts gets innocent civilians in harm's way as well.
Walker must find a way to prove a condemned man's guilty plea was the result of blackmail before he's executed.
To get information on a gang who destroyed a friend's life via blackmail, Walker and Trivette join by posing as street fighters.
Walker's cousin, David Little Eagle Jackson, returns to the reservation following studying medicine to find many do not like him, including his girlfriend's father, whose murder he soon witnesses.
Walker and Trivette come close to apprehending the leader of a drug ring they've put out of business. Alex gets involved in the case of a student's rape.
Though they've no jurisdiction there, Walker and Trivette go to Mexico to help Walker's former partner escape from Mexican criminals.
Country-singer Merrilee needs Walker's protection from her estranged ex husband who's threatening her.
Walker soul searches after he nearly causes a young boy's death during a hostage situation.
Walker goes undercover to foil a small town's local officials, who've been taking the law into their own hands by killing the town's criminals.
Using a psychic to help locate a kidnapped 8-year-old earns Trivette ridicule from his fellow rangers.
While transporting a condemned man from Ohio to Texas, his friends skyjack the plane and subdue Walker and Trivette, who must find a way to prevent his escape.
Walker and Trivette go undercover to find out what happened to Walker's friend, a victim of a hijacking.
C.D. must rescue Walker and Trivette after they get trapped in Texas' backlands while tracking brothers.
Walker and Trivette get help from a legendary Texas Ranger, back to seek justice for his murdered son, to help track down an assassin with a senator in his sights.
A young mother's baby girl is stolen from her and illegally adopted by a rich couple who need a child to secure their political ambitions. It is up to Walker to return the girl to the rightful mother's arms, but Laurie withdraws consent after the shady adoption agent threatens the baby.
Walker and Trivette set to prove that race was an illegal main factor in an arrest.
The death of a government inspector seems to be linked to a cattle rustling operation that always manages to avoid the law.
When a new designer drug called "silk" results in several fatalities, Walker and Trivette must infiltrate the local club scene to find the source of the deadly substance.
Walker finds himself fighting for his life after he attempts to rescue a group of federally protected mustang horses from some unsavory ranchers.
When a hit-and-run accident pushes a vehicle to the edge of a bridge with an infant trapped inside, Walker will do whatever it takes to save the child - even if it means putting his own life in grave danger.
Although Chief Six Feathers' death is at first deemed an accident, his son immediately suspects foul play and enlists Walker and Trivette to help him track down whatever - or whoever - really killed his father.
Alex finds her life in imminent danger when she uncovers a group of Dallas police officers who have been involved in a corrupt drug ring.
After killing a man involved in a carjacking, Walker becomes the target of several assassination attempts. These attempts begin to make sense when he learns that someone has put a $1 million bounty on his head.
The Japanese mob is kicking up some trouble in Houston. Unfortunately for them, they decide to kidnap the wrong kid. The cute little daughter of a wealthy Texas power broker is home from a boarding school for some R&R and a little rodeo fun, when - on the drive home from the airport - she's violently snatched from her limo and two bodyguards. During the girl's previous year at the rodeo, she became one of Ranger Walker's many little buddies and proteges. So the bad guys have no idea what kind of bad news they've brought to themselves!
When authorities discover a local bingo gambling hall is actually a front for a drug-money laundering operation, Walker and his team are assigned the daunting job of protecting the cops' star witness - a witness who will do just about anything to escape.
The thrill of working on the set of a Hollywood western quickly turns into serious business when Walker and Trivette discover a group of stuntmen on the shoot plan to carry out an actual train heist.
Walker and his team take on a group of troubled, wealthy teens who believe the only way to clean up the neighborhood slums is to kill off the homeless population.
Walker and Trivette must save Alex, who is kidnapped by career criminal Victor LaRue.
A series of high-profile robberies puzzle the Rangers, but when one results in the death of Walker's friend, it becomes a personal crusade.
Walker must clear the name of Trivette, who's been accused in the disappearance of $5 million in counterfeit money.
A helicopter comes in and the man inside kills the Judge in front of Alex and Walker just before he can tell them what he has discovered Fortunately Walker jumps into the helicopter and pulls the killer out with him. The killer, whose name is Sonny, reveals that a prominent businessman named DL Dade ordered the hit and also reveals that he is an underworld figure. With Sonny's help, Walker and Trivette begin to take down Dade's illegal operations.
Cherokee youths are stealing artifacts from a museum, claiming they were taken from their ancestral burial grounds.
Walker seeks to disprove 40 years of UFO sightings in a small, Texas town, while also trying to find the missing father of a young girl.
In the present Walker pursues a group of killers seeking the lost treasures of Hayes Cooper, a Wild West Texas Ranger. And "flashbacks" to Hayes Cooper, who with Lockett, is pursuing a group of killers in the 1800's.
After surviving a rattlesnake attack, Walker with Trivette's help continues his pursuit of the killers who uncovered "Cooper's Gold."
Walker and Trivette protect a Mexican Presidential candidate from an assassin.
An escaped psychopathic prisoner named Max Kale goes on a spree, eager to kill people who helped put him away in prison—a list of people including Walker, Alex, a doctor named Jane Pine, a judge named Hollister, Max's ex-wife Angela, and the neighbors from the street where Max was raised. Now Walker must do whatever it takes to protect the people and put an end to Kale's rampage.
While on loan to the DEA for a case, Walker and Trivette head to Miami, Florida, where Walker poses as a cocaine dealer to help break up a drug trafficking operation and rescue a cop that is being held hostage.
When an undercover cop winds up dead, Walker goes undercover at an oil rig to locate The Guardians, a group of eco-terrorists that have infiltrated the rig with the intention of blowing it up.
C.D.'s niece is kidnapped by her ex-boyfriend who forces her into a string of bank robberies. Walker and C.D.'s pursuit of them becomes further complicated when a radio show host "Tumbleweed Tom", unaware of what's really going on, offers a bounty on their Bonnie and Clyde-style bank robberies.
Walker and Trivette investigation of the murder of an assistant high school football coach leads to their discovery of a blackmail plot towards the team caused by an illegal high-stakes gambling ring and they must end it before the state tournament game the high school team had been preparing for starts.
Running Wolf, a malevolent medicine man resurrects after the desecration of his burial ground, and Walker must confront his past demons if he hopes to stop the spirit before he gets revenge.
For years Walker has believed that the man who murdered his parents at a carnival in the sixties was dead, but after visiting with one of them men who had attacked them that night, Walker realises that his parents' killer has been living the life of Riley for the past few years, and he needs the help of an old cowboy who witnessed the crime to track him down.
In a small town, an elderly woman is murdered and a young mentally disabled man who was living with her is accused of murdering her by a lynch mob which demands to settle it with vigilante-style justice. Walker and Trivette must prove his innocence before the mob extracts vengeance.
Alex and Walker's whitewater rafting trip becomes a working vacation when one of the rafters is murdered. Meanwhile, Trivette and CD are on the trail of an escaped convict who's headed down river in the same direction as Alex and Walker.
Feuding gangs divide a neighborhood at Christmas.
Victor DeMarco, a mob boss who was put away in prison years ago, is given a new trial and intends to go free by using false witnesses. After his men kill two of the real witnesses, Walker and Trivette go undercover to protect the final witness, a rodeo rider who is an ex-boyfriend of Alex after he refuses protective custody.
Some Irish militants are trying to kill a peacemaker. But when the plan results in the leader being captured, the man's son plots to free him.
Walker and Trivette go undercover in a prison as a convict and a guard respectively to gather evidence on a convicted felon that had a key witness and two rangers murdered, but are unaware that the assistant warden and some of the guards are working for the felon. On top of all that, Trivette gets exposed, forcing Walker to work alone and bust the warden before his own cover is blown and the felon walks free.
Paroled on a technicality, Victor LaRue pretends to have changed as he takes revenge on Walker and Alex.
Alex helps an abused wife at a mountain retreat of her women's support group to see that her violent husband can never change, but when he tracks her down to the retreat's location, it places all of them in danger.
After saving a female Mexican immigrant who was brought in illegally and forced into prostitution, Walker goes undercover with Mexican agent Jesse Rodriguez as a peasant to track a large operation of slave-labor smugglers in Mexico that are migrating Mexican immigrants into the United States illegally by tricking them with false promises of providing them with a better life.
While being put to work at a farm, Jesse finds one of their men there to whom he once arrested a long time ago could identify him as a police officer once he remembers him which puts both his and Walker's cover at risk, forcing Walker to show his worth by standing up to the slavers to meet the real leader of this slave-labor operation before their cover is blown. Meanwhile, after the female immigrant they saved is recaptured and forced back into prostitution, Trivette leads a manhunt to get her back.
After arms dealer Randall Hooks is killed by Walker in a raid his older mercenary brother Caleb Hooks gets revenge by killing Phillip Daniels, the F.B.I. agent in charge of the bust and kidnaps Walker and makes him fight to the death. Meanwhile, Trivette works with Daniels' partner, Carl Bishop to locate Walker.
Action surrounding Walker stymies Trivette's attempts to impress the female reporter of a "Behind the Badge" documentary show.
A blow to the head leaves Walker with amnesia during an undercover operation to uncover money laundering at a casino, and his only ally is a female spy who must help him recover his memory to bust the scam.
A senator proposes to save money by disbanding the Texas Rangers. But when his daughter is kidnapped by a gang of jewelry store robbers, he refuses the Rangers' help, choosing to rely on the F.B.I., although Walker and Trivette have a better chance of locating the kidnappers in time.
Walker and his friends are on a fishing trip in the wilderness in a cabin run by Hank Cotton an old friend of Walker and CD, square off against a group of Drug Runners run by Glen Larkin and his younger brother Chip.
When warehouse robberies get linked to the Russian mob, the Rangers call on the Moscow police for assistance.
While he and C.D. are trailing a group of bank robbers, Walker learns a small boy is trapped underground, unaware that the boy's father was forced to help in the robbery. When Walker finds himself buried alive with the boy, it is up to Trivette to rescue them.
A serial killer from C.D.'s past taunts him as he prepares for induction to the Texas Rangers Hall of Fame and Walker and Trivette set out to help C.D. bring him to justice.
