A top forensic team sift through clues and attempt to discover the identity of a mystery person. Initially the target earns the nickname Fast Food Freddie, as the team watches him on the surveillance footage. But they see him differently when they read the results of his medical tests and see him working out. He might like fast food, but he's fit. His MRI scan throws up traces of many minor injuries, and his psychological tests suggest he is a risk-taker.