A hardened criminal, whose personality belies his viciousness, escapes from prison, killing a guard. Dan Mathews swings into action, and as the man commits one ruthless act after another to break through the trap closing in on him, it becomes apparent that there's almost a personal conflict between the two men - that ends only when they meet face to face in the final scene.

An expensive, giant computer, one of the twentieth century wonders, which does a tremendous amount of administrative work in just hours, is ingeniously 'kidnapped' from an electronics company by two men. The firm's owner is told to get $100,000 from his bank at two o'clock the next day and wait for instructions. A helicopter chase helps Dan stop the men from collecting the ransom or getting away.

An uninvolved man happens to be in the company of two brothers who hold up a diner and kill its owner. Fearing the police and terrified of the vengeance he may expect from the criminals, he flees. As Dan searches for him, one man winds up dead, two critically wounded, and the man who a few short hours ago was an average law-abiding citizen is harried to the point where he is willing to shoot it cut with the police - until Dan manages to show the error of his ways.

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Car thieves purchase wrecked vehicles and transfer the VIN plates to stolen ones in order to escape detection.

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We don't have an overview translated in English. Help us expand our database by adding one.

Reporter Sam Dalquist has gone missing. Dan has been looking for him because a two bit hood was found dead after getting a traffic citation driving Dalquist's car. The only lead Mathews has is that Dalquist was working on an exposé about a hood named Matlock and that may be where the writer will be found...dead or alive.

Several criminals conspire to stage highway accidents prompting truck drivers to stop and help victims only to be assaulted and have their cargoes stolen. After discovering the hijackers are being tipped off by the owner of a roadside diner favored by truckers, Chief Mathews creates a ruse to force the crime ring into action with the hopes of capturing them.

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Mathews investigates a businessman's accidental death. Mathews: Broderick Crawford. Foster: Joe Haworth. Tom: Pierre Watkins.

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We don't have an overview translated in English. Help us expand our database by adding one.