'Onward to the unknown!'

It's just another day at the office for world-famous superhero Doctor Extraordinary as he battles his arch-nemesis Captain Chaos in yet another epic showdown. Unfortunately this one doesn't quite go to plan and they both get blown up inside a giant robot.

Dr Ex's number-one-fan, twelve-year-old Sonny Nelson, is devastated. A world without heroes is totally rubbish! But things take an even more extraordinary turn when Doctor Ex returns as a ghost and only Sonny can see him . . .