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.

When high-tech carjackers wreak havoc in Texas and kill Gage's old high school sweetheart, the Rangers make it their mission to bring the murderers to justice, while Gage learns to deal with his disability with the love and support of Sydney.

When a mix of steroids and meth starts killing high schoolers, Walkers seeks the source of the deadly combination.

A Texas Ranger wannabe tries to upstage Walker by capturing prison escapees, buts gets innocent civilians in harm's way as well.

Sydney and Alex are kidnapped by two Mexican brothers that are looking for revenge. Now is up to Trivette, Gage and Walker to save them. Or will the girls end up saving them?

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.

Vince Pike, the man who shot Walker's fiancee ten years earlier, manages to get an early release from prison. For Walker painful memories about the time with Ellen return. While he survived an attack by Pike's men back then, Ellen died. And now Walker seeks justice - and Pike a destroyed Walker when he wants to go after thepersons in his life. First C.D., then Trivette, and finally Alex.

The gang gets ready for Alex's friends Kim and Phil's wedding. Walker finally decides to propose to her after, but the wedding is then is attacked by a group of hitmen. When the shootout is all over, Walker tries again to propose to Alex, but she is shot by Karl Storm, a man she helped incarcerate five years earlier.

Walker and Trivette go undercover to find out what happened to Walker's friend, a victim of a hijacking.

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.