Walker's partner goes undercover and gets sent to prison. But the bus never makes it when a hurricane blows into Texas and Walker follows the escapees to a remote hotel where only the owners and a special friend still remain.
When they capture a woman who took part in a jailbreak, she agrees to testify in New Orleans, which is where Walker and his partner are assigned to escort her to, much to the chagrin of Trivette, who had vacation plans instead.
Walker gets a sinking feeling in his guts when, after arresting two guys for trying to rob a club and shooting the bartender, Alex sets them free and won't give them a reason as to why it all happened.
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 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 lead 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 father set him up and left his partner for dead, but the guy also beats on the kid and the kid's mother.
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.
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 ...