A crook has what appears to be a perfect racket. His men cause trucks to have accidental break-downs on the roadway, and then he sends out a service to repair the trucks. His plans works until two things happen. A trucker turns down the service, calling the Highway Patrol instead, and one of the crooks/road mechanics ends up dead.moreless
While inspecting some of the outlying Highway Patrol substations, Dan decides that breakfast sounds good and stops at a dinner in a small town, only to be told that the stove has just broken. He tries another place that closes as soon as he gets there. The town's general store is closed and Dan's suspicions rise when he sees no one anywhere in the town.moreless
Using a lie detector, and his intuition, Dan must sort out who is telling the truth about an attempted robbery of an old woman who owns a motel and her eager to help nephew.
A Highway Patrolman stops a young man for exceeding the speed limit and then becomes suspicious of all the spare parts in the car, only to have the boy panic and accidentally run over the officer.
Using forensic science like metal work and foot print analysis to help solve a crime, Dan must use all resources available to find the criminals behind a daring armed robbery using a perfectly replicated armored truck, which has already resulted in one murder.
A ranger calls the Highway Patrol when he sees a small plane coming down in what he thinks is an emergency landing. Mathews arrives to find the empty plane intact and the ranger murdered.
An ex-mob boss turned witness refuses to be guarded in a hotel, so Dan and team set up defenses on the man's ranch, spending five days fending off a sharp shooter, a car bomb, and explosives in a package.
An oil research device that contains radioactive materials is stolen and makes it's way through various hands until it's about to be dismantled by a ham radio operator, with his pregnant wife looking on.
Dan gets a tip from an anonymous source that a mobster has a hit scheduled for the senator who is heading up the crime commission that is investigating the crook's rackets.
Dan gets a tip from a salvage dealer and uncovers a car theft ring that buys wrecks for their plates and registration, which they then put on freshly stolen repainted vehicles.
One of Chief Mathews' best officers suddenly resigns and Dan soon figures out that it's because the cop's own brother is an escaped criminal.
As a result of an APB broadcast on radio stations, Dan picks up the trail of a murderous con man heading out into the desert. The only way to catch up with him is by air.
A guard is killed during a prison break and the escapee is a ruthless career criminal who will stop at nothing to prevent capture by Chief Dan Mathews and the Highway Patrol.
Two men steal a state of the art computer and hold it for $100,000 ransom. A chase from the air in the Highway Patrol's Bell 47 helicopter prevents their get-a-way.
Chief Dan Mathews sets up a sting to try and find out the source of heroin that is craftily being smuggled to pushers behind the hubcaps of unsuspecting tourists who frequent a certain resort.
An injured young hood takes hold up in a mountain cabin and is helped by a woman, while her husband contacts a nearby ranger. The man comes to, and takes the woman hostage, just as Dan closes in from the sky.
A bank messenger responsible for transporting large sums of money is pressured by his wife to steal one of the shipments, only he finds out she plans on taking the loot and running away with another man.
After a bystander is shot when three robbers hold up a bank, Dan must move quickly to insure no one else in this small coastal town gets hurt.