Walker realizes the rafting guide is one of the escaped convicts who killed the real organizer. He must find a way to capture him and save the others on the trip.

A local gang is destroying businesses and starting turf wars. They threaten one of Walker's karate classmates and force him to join the gang. The Rangers must save him and stop the turf wars.

A former boyfriend of Alex is in trouble when a prison is released from jail, waiting for a new trial. The crime boss is killing the witnesses that put him in prison in the first place. Walker must save the witness so he can testify again.

An Irish peacemaker visits Texas to talk about a plan to unify Ireland. Irish militants attempt an assassination. One of the militants is captured and the rest of the team attempt a rescue as well as continue the assassination attempts.

In a maximum-security prison, Walker poses as a hitman to get evidence on an incarcerated racketeer who has had a key witness and two Rangers killed.

Victor Larue manages to secure his release from prison. He immediately begins pursuing, stalking, and tormenting Walker and Alex to get revenge. He torments them at restaurants, baits them to go to his apartment, hires others to attack them, and tracks them down when they try to elude him.

A woman asks Alex to help her escape from her abusive husband. Her support group goes on a retreat for a few days and have everyone help each other. Her husband finds out where they are, placing everyone in danger.

Walker goes undercover as a peasant to stop a slave trading operation.

Walker works with Jesse Rodriguez to break up the Mexican slave trading in Texas. Walker finds the person that is running the operation and closes it down.

Walker works with the FBI when they bust an arms dealer. The man in charge pulls a gun and Walker shoots him and his dying words are for him to watch out for his brother. The brother, who was out of the country training some mercenaries, upon learning of his brother's death, takes his mercs and goes to Texas. Upon arriving he uses the FBI agent who worked with Walker to get him. He knocks him out and when he wakes up, he tells him that he's going to have to take on each of his men who have been told to kill him.

Trivette is shadowed by a television camera and interviewer while he attempts to capture an FBI fugitive. Walker has the mayor's nephew shadowing him to see what a Ranger's life is.

Walker wakes up in a hotel room with a gun in his hand and a dead man on the floor. He can't remember what happened nor who he is. A cocktail waitress from the hotel's casino helps him escape from the people trying to kill him.

When the Texas State Legislature is pondering budget cuts, Sen. Warren Hughes suggests disbanding the Texas Rangers...unaware of a deadly plot an experienced jewel thief has planned for his daughter, Lindsey. When he hatches his plan and has her buried alive, it's up to Walker and Trivette to track down her captors and find where they buried her before it's too late. In the process, Sen. Hughes learns just how vital the Rangers are to fighting crime.

C.D. is inducted into the Ranger Hall of Fame. Meanwhile, the only case he could not solve when he was a Ranger comes back to haunt him. The Hangman is back to his old tricks. He taunts C.D. with calls about his killings.

A young boy is considered to be the reincarnation of a former master named Lama Dolgin. Walker helps protect Master Rin who has taken the boy under his wing in order to restore him to his power.

Trivette's cousin is killed when he learns soldiers are stealing supplies from the base. The killers are part of a white-supremacist group; their leader is arrested for murder. They retaliate by taking over a TV station for hostages.

The skeletal remains of a teenage Native American boy are found on a construction site. He was murdered eight years earlier. Walker feels the spirit of the Native American who helps him solve the mystery of his death.

A group of cops execute criminals that beat the justice system. After a few murders, the Rangers figure out the pattern and try to track them down. When an innocent person is killed, Walker makes it his job to stop them.

An agricultural company produces cattle feed that contains a virus. Instead of recalling the feed, they let the virus spread for research and a way to make it better. It affects almost everyone in town.

Alex is about to prosecute a man named Karl Mayes. She learns that he hired her father to defend him. Her father is a recovering alcoholic and Mayes gets him to drink. Eventually he's not sure if he can defend Mayes which makes him wonder if he can trust him to keep quiet.

An investigation into the theft of a state-of-the-art military helicopter for use in the drug trade leads Walker to a former fellow Marine Corps officer, who abandoned his unit 25 years ago in Vietnam.

Walker and Trivette are in the midst of investigating a trio of college students who use Rohypnol to subdue unsuspecting female victims in night clubs, when their friend, Darcy Reynolds, is raped on her 21st birthday. After another one of their victims is killed, the trio become willing to try anything to shake the Rangers.