The trio investigate an operation run by an ex-Nazi doctor who is providing plastic surgery, and hence future anonymity, for international criminals. Craig and Sharron go undercover as an Italian gangster and his moll; however, Richard is forced to move in and masquerade as a vagrant, in order to provide a matching blood group for them (because vagrants provide the raw biological material for the operation).

Barrett, tipped off by a journalist contact, investigates a project in the Welsh countryside that is experimenting with freezing people at the point of death so that they can be revived once medical technology is advanced enough to help them.