One group of criminals engage in crime as a business. They are likely to be shrewd and cunning, and they are the hardest to catch, because they plan their crimes well, and usually they all have one goal - to commit the perfect crime. Today's file is an example of just that. Pete has been casing a payroll job for the past four weeks, and he's been using his camera to film the surroundings to make sure they can get in and out. We join them as he is filling in his accomplices on the plan...