A vicious, unpredictable prison escapee abandons his injured partner, ambushes a highway patrolman, and uses the patrolman's uniform and gun to hijack a school bus in a daring attempt to escape his pursuers.
Tragedy results when an impatient traveling salesman refuses to heed numerous warnings concerning his predilection for speeding and taking chances while driving.
An innocent man who unknowingly accompanies two acquaintances on an armed robbery flees and finds himself pursued by the Highway Patrol and by one of the revenge-seeking felons.
A series of fraudulent insurance claims is discovered after Dan Mathews and his officers learn that the "accidental" death of a migrant worker was actually a homicide.
A "transportation maintenance service" provided to trucking companies by an apparently legitimate businessman proves to be little more than a protection racket.