When everyone is blind, being invisible is hardly an advantage, as no one can see anyone else anyway. Sharpening up one’s hearing is the only way of turning the tables on the only people who can see – the crooks!Iron King and his gang have a new weapon which temporarily blinds witnesses to their crimes, so that they can be neither identified nor arrested. When the gang holds up the restaurant where Alan and Linda are enjoying a romantic dinner, the two of them are blinded by the secret weapon. Now, the Invisible Man - the hero no one has ever seen – cannot see anyone either! Being blind, the search for clues is slow, except when Foton has to steer the aero-bike in spectacular chases. The only way that the hero can make progress in his investigation is by following the advice of a blind street musician: ‘Now you have to solve problems with your ears instead of your eyes.’