The honorable Bertrand Battenburg visits Chisleton and Mad Mick of Merseyside is out to replace him with a mechanical double (and kidnap the original copy). Unfortunately, Supergran, who is supposed to protect the Battenburg boy, gets hits on the head with a log thrown by Geoff Capes and loses her superpowers. Meanwhile, the Scunner plans to get his hands on the honorable Bertie himself in order to rise up from the bottom position on the Top 50 criminals league.