Charles-Ingvar "Sickan" Jönsson is a new student in Dynamit-Harry's and Ragnars's school. He instantly gets bullied by Junior and Biffen for his nerdy looks. The year is 1953 and 'filmisar', small collectible cards with portraits of film stars and celebrities, found in cornflakes' boxes, are popular at the school. Sickan's first heist will be to get as many 'filmisar' as he can by sneaking in to the cornflakes factory with his newly made friends Harry and Ragnar.