Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
A homeless man's dog helps Walker crack a Thanksgiving crime when two real estate developers murder a priest to stop him from building a job training centre.
Alex gets embroiled in a religious cult movement run by a dangerous man while trying to help a desperate man's daughter. S1 Ep7
A deadly international assassin is in Texas, and Walker must stop him before the visiting Israeli Ambassador becomes his next victim. S4 Ep12
Chuck Norris fights crime and helps the community as the eponymous Walker. When Walker receives a plea for help, he assesses something is very wrong with the situation. S1 Ep8
Walker tells children a Scrooge-like tale from the Old West about Hayes Cooper, a Texas Ranger from 1876 who was said to have no Christmas spirit. S4 Ep13
Chuck Norris is Walker in this modern high kicking martial arts western. Walker and Trivette escort a witness named Cat, but the group get separated... S1 Ep9
Walker and a key trial witness he is escorting miraculously survive a plane crash, and Walker must lead the survivors, including a woman in labour, to safety. S4 Ep14
Chuck Norris fights crime and helps the community as the eponymous Walker. A criminal proves elusive due to his sister's status in the Witness Protection Programme. S1 Ep10
Walker takes a group of underprivileged teens for a retreat, not knowing one of them has stolen money from drug dealers - putting all their lives at risk. S4 Ep15
Chuck Norris is Walker in this modern high kicking martial arts western. Animals have been dying mysteriously, but then the vet looking into it is murdered... S1 Ep11
When a young martial artist is framed by an enemy for murder and drug possession, Walker steps in as his coach for the Kickboxing Championship of the World. S4 Ep16