George (Martin) and retired Desiré (Berghmans) are two sworn comrades. Life at Desiré's home is made quite miserable for him by his wife, son, and daughter-in-law. Only his granddaughter cares about him. It will soon be Sinterklaas. They want to earn some money as Piet and Sint, but things are really not going well.

In this sequel to Blueberry Hill, the boys of the Catholic metal working-class, who are now all working, decide to take revenge on the hated former principal Verbiest, after the sanctimonious 'pillar of society' assaulted one of their girls.