Having assumed the identity of a crooked stunt driver in order to infiltrate a gang planning a multimillion-dollar burglary of go along with the entire caper when a change of plans thwarts all possibilities of his communicating with Inspector Spooner. Gang leader Ralph Connell has worked out every detail of a weekend break-in of a bank in the town of Stillwater. As driver-mechanic, Dave has been able to send in the license number and a description of the car to be used, but Connell makes a last-minute switch in vehicles. With Toma at the wheel, the gang shakes the police, leaving Spooner and Patty Toma in the dark as to the whereabouts of Dave.
