Walker and Trivette are on the trail of a drug ring, while a new dean at the local college campus seems to have the inside track to Alex, impeding the investigation of several rapes in the past several months at the same time.
Walker believes that the dean of the college where Alex teaches is hiding something surrounding the rapes on campus, and he also stumbles across information that leads him to believe that one of his karate students has a connection of some sort with a drug ring he's been chasing for some time. But it's personal, not only because the kid's mom's boyfriend set him up and left his partner for dead, but the guy also beats on the kid and the kid's mother.
A boy from a broken home wants to impress his father by stealing drugs. But the drug dealers are now after him and Walker helps him. Also, Trivet and Walker find the men who robbed a store and shot one of the employees.
Someone is killing criminals who are not convicted due to insufficient evidence. Alex learns there is a committee of vigilantes who determine which people to kill, and she asks Walker to become part of the committee to find the ring leader.
Trivette leads the investigation when a little girl is kidnapped. The mother relies on a psychic so Trivette must work with the psychic. It seems the psychic does have the ability to sense things, and together they find the girl.
Alex sends Walker and Trivette to go bring back a man who killed a ranger who was sent bring him in. Walker is sullen; it seems that the ranger who was killed was a friend of his and that Walker was the one who was suppose to bring the man in but was unable to. When they get on the plane some people associates of the prisoner try to hijack the plane. Walker has the pilots dump the fuel and return to where they came from. Eventually they subdue Walker.
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.
There's a reunion of former Texas Rangers and there's a shooting competition with cops from all over the country coming to take part in. An old friend of Alex's, a Senator who is rumored to be running for President is also in town. A retired Ranger and friend of Walker's is also in town and is looking for a man whom he believes is involved with the killing of a cop in another city. When Walker learns of this, he thinks the man is some kind of Black op who faked his death is now a gun for hire. The group whom he is with is in town to do a job and the one in charge ...
Rustlers are stealing cattle and selling them. A cattle inspector tracks the group down, but is killed when he tries to arrest them. Walker and Trivette pick up the investigation of the rustlers and find the one who killed the inspector.
A man contacts Alex about a problem but is killed before giving details. His last words are to save the horses. The rangers investigate the man's last days and find a plot to kill the wild mustangs on a range to make way for a development.
After a woman's car is forced off the road by a hit-and-run, Walker makes a daring rescue of her and her daughter. He is injured and falls into a coma in the hospital. Trivette and others search for the driver of the hit-and-run car.
An elderly Indian Chief dies. He learns that Chief Six Feathers was killed because he would not sign over his land for development. The chief's relative gets into trouble investigating the death. Walker and Trivette help.
A policeman learns a few other policemen are stealing drugs from the evidence room in order to sell them. He is killed to keep him from telling Alex and Walker. The rangers investigate his death to find the dirty cops.
Car thieves are plaguing the city - they steal a specially adapted van used by a disabled boy. Walker is determined to find it for him. In the process of looking for it, Walker kills one of the thieves - a young boy whom Walker knows. It seems that the boy came from an affluent family. Walker has previously arrested him but his family used their influence to get him off the charges. And later Walker learns that someone has placed a million price on his head. And despite being told this, Walker's main concern is getting the van back.
The daughter of a wealthy Texas businessman is kidnapped by a Japanese gang. The ransom request is for the businessman to turn over his security chief who had been a cop in Japan and was responsible for capturing many of the gang members.