A five-year-old case is coming to a close when a serial murderer is finally facing the death penalty. But everyone's dreams come back to haunt them and Walker follows his instincts in believing that they got the wrong man scheduled to die.

Walker and Trivette track a group of brothers who are robbing and assaulting people across the county. The deeper into the back country they go, it gets more difficult for Walker and Trivette. Worried, CD goes to help.

A convict seeks forgiveness from those he did wrong. He contacts Walker and tells him that the person who killed Walker's parents is still alive. Walker tracks down the killer to have him finally get his punishment in court.

A well-liked woman in a small town is murdered, and townsfolk suspect a slow-minded man. The sheriff calls the Rangers to help prevent a lynching. Walker and Trivette must find the real killer before the angry town hangs the innocent man.

The Texas Rangers ask the Russians for assistance in capturing a criminal the Russians had previously dealt with. A mild-mannered Russian shows up, pretending to be powerful. When they find the criminal, the Russian gets beaten up.

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. The virus affects almost everyone in town.

Walker's friend Father Blake is besieged by a ruthless developer who plans to build shoddy condominiums on the same site that the priest has announced plans to build a shelter for the homeless. The developer's cronies assault Blake, but a down-on-his-luck veteran and his faithful canine companion, Lucky, witness the crime. "Soldier" goes into hiding, so it is up to Lucky to aid Walker in his search for witness and help derail the developer's crooked plans.

LaRue returns. This time, he has a court hearing to determine his sanity. LaRue wrestles a gun from the bailiff and takes over the court, killing people at whim. He is waiting for Walker to come so he can kill Walker.

The newly-appointed 99th Ranger goes undercover as a teacher for the son of a mob boss. She is there to collect evidence against the criminal, but realizes she has to help the young son away from his abusive father.

The Rangers bust up a drug operation. While the leader and his sick girl friend escape, their son is found locked in a closet where he was forced to live. Ranger takes the boy under his wings to give him a life while tracking the parents.

With Walker's help, Lucas starts to live life fully. Walker finds out Lucas has AIDS and will soon die. The Rangers find the mother who is also dying from AIDS. The drug dealer is captured.

Sam Coyote, Walker's friend, the Sheriff at the Cherokee reservation has been seeing Nora Shannon, an archaeologist who's been working on the reservation. When he proposes and she refuses things between them go bad. At the same time an oil magnate who knows that there's oil under Shannon's site plans to get it. And part of his plans is to kill Nora and frame Coyote. While Walker has no doubt that Coyote's innocent; the Feds don't think so. So in order to keep them from taking Coyote off the reservation and buy some time to prove his innocence, Walker has Coyote's deputy arrest him and with help from the Tribal Judge to stall the Feds.

A hit team targets a future wedding for two cops and their friends including the best man and maid-of-honor Alex Cahill.

Alex's life hangs in the balance after being shot by a criminal during her friend's wedding. The Rangers track down the team who attacked during the wedding. Walker keeps remembering how much Alex means to him.

A company is dumping pollutants into the river where Native Americans swim and fish for their tribal families. The children start dying. A group of Cherokees decide to solve the problem themselves. The Rangers work with Sheriff Sam Coyote to find the evidence of the dumping.

A high school principal reaches out to Walker when his school is overrun by drugs. It appears to be an inside job as the students always know when there is a raid. When the principal finds the leader, he is killed.

The Cherokee Indian racing team is experiencing a lot of problems with their cars and drivers. A rival team wants to make sure the Cherokee do not win the races. Meanwhile, a young girl is kidnapped so Trent and Carlos search for her.

A Cherokee driver is injured by a rival racing team. Walker takes his place in the race.

The HOPE Center hosts a charity rodeo to raise money. During practice, a man sexually harasses a woman; Trivette rescues her, but the man is accidentally killed by his own hand. The dead man's father decides that Trivette must die.

Killer Lavocat breaks his gang members out of prison to help kill the Rangers he determines a threat to his life. Lavocat caused the death of CD, Jenson, and attempted to kill Trivette. A Hayes Cooper story parallels the modern day story.

Lavocat continues with plans to kill the Rangers. As the Hayes Cooper story unfolds, Hayes fights an ancestor of Lavocat. In current day, the Rangers go after Lavocat. Trivette and Erika are engaged for marriage. Alex gives birth to a girl.