Cynthia Dorn

Walker helps the talented but directionless son of an old friend find purpose in his life. Trivette tracks a cop killer in Dallas.

An escaped convict embarks on a vindictive killing spree as he seeks revenge against those who put him away. As the murderer targets the trial judge who sentenced him, Walker and Trivette race to apprehend him before he can execute his plan.

Trent (Jimmy Wlcek) is stabbed by an assassin (guest star Gary Busey) as he escorts a Special Olympics athlete (guest star Andrea Fay Friedman) to running practise. With Chuck Norris.

Assassins target Walker's plane, blowing it up in an effort to eliminate the lawman and a key witness that he is escorting. After the explosion, Walker has to lead the survivors to safety in the knowledge that the hitmen are out to make sure he and his witness are dead.

A genetic engineer is kidnapped by scientists looking to put her DNA research to dastardly use by creating a race of superwarriors.

The city is on high alert when a terrorist threatens to unleash a deadly bioweapon if the authorities do not bow to his demands within 48 hours. Will Walker's two star rookies be able to track down the madman?