Bounty hunters going after a group of America's most-wanted fugitives hope to make millions from their story.
The 'Malevolent Seven', all hardened criminals, broke out of a Texas prison on December 13.
A $500,000 reward is being offered, but private detectives think the real money will come from Hollywood.
Gumshoe Bob Burton, who operates a bounty hunter training school in Tucson,
Arizona said: "Getting $3 million to $5 million in book and movie rights: that's the real reward".
The FBI and police say the job is best left to the professionals and have warned the public not to attempt action.
Dallas private investigator Ted Horneber has assigned eight investigators to the case.
He said: "Those are people that are extremely dangerous. One of our guys could be hurt".
The Seven are already suspected of carrying out a robbery and shooting a policeman dead.