Dragnet: 'The Big Bounce'
Dragnet!The story you are about to hear is true. The names have been changed to protect the innocent.

You're a detective sergeant. You're assigned to Forgery Detail. For the past several months a man posing as an actor has been passing worthless checks in your city. You've got a description of the suspect, but no lead to his whereabouts. Your job.....get him.