To become a special agent of the FBI, an applicant must pass a rigid series of mental, physical and character examinations. Passing them doesn't mean however, that he will exercise his talents whilst seated behind a desk. Special agents go everywhere, frequently traveling as something other than a law enforcement officer. Occasionally, they assume the part of salesman, taxi drivers, messengers, bank employees, factory workers and 101 other roles. Sometimes, as in tonight's case, they even pass themselves off as criminals...