The leaders of a money laundering operation at a bingo hall are captured and put on trial. The accountant is asked to testify against her bosses. Walker and Trivette have to take her to court, but she keeps escaping them for her own agenda.
A group of men kidnap a wealthy business man, and take others who were standing near. Alex is one of the people kidnapped. While the kidnappers are arranging for ransom, Alex manages to call Walker with information to help him find them.
Men dressed as clowns are robbing banks at gunpoint. During one heist, an ex-partner of Walker's is killed. Walker and Trivette are determined to find the ruthless group. Walker helps the dead ranger's children cope with their loss.
The rangers attempt to capture counterfeiters. They escape, but the rangers take the fake money into evidence. When $5 million is missing, Trivette is accused. Walker must clear Trivette's name and find the real criminals.
When a judge is murdered, Walker captures the hit-man and finds out that D.L. Dade ordered the hit. Since Alex has no evidence against Dade for murder, Walker gathers evidence for Dade to get him in jail.
While on a drive, Walker and Alex find a child walking alone on the back road. She says her father was taken by men from space. The rangers and Alex investigate the strange lights and sounds despite being warned off by the Army.
A geologist is killed after he claims to have found the lost treasure of Hayes Cooper, a Wild West Texas Ranger. Walker tells Trivette the story of the treasure as they investigate. Walker gets bit by a rattlesnake and has dreams of Cooper.
An undercover detective in Miami is captured by drug dealers when her cover is blown. Miami police ask Texas Ranges to help by going undercover as out-of-town dealers looking for drugs. They recuse the detective and break the drug ring.
Members of a high school football team are being blackmailed to throw an upcoming game. The team's coach is murdered when he learns of the blackmail. Walker and Trivette must break up the gambling ring before the state championship game.
It appears that Indian spirits are protecting Indian burial land. Witnesses report that spirits appear, frighten, and attack those who get in the way. Walker seeks help from the Indian Tribe to learn how to fight evil spirits.
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.
Walker and Alex go white water rafting and camping trip. In the morning, a rafter is found dead. The group continues rafting to the nearest station for help. Meanwhile, there is a prison outbreak and convicts are heading towards the rapids.