Riko Tik used to be bullied as a kid, now he want revenge. He falsifies the book of the Sint so that it looks like all the kids have been naughty this year. Disguised as king Kabberdas he goes to the house of the Sint to fool the holy man with the wrong book.
A young couple travels to a shabby Eastern European hospital for plastic surgery. The young woman wants a breast reduction. Her mother comes along for yet another face-lift. Wandering through an abandoned ward the boyfriend stumbles upon a young woman, gagged and strapped to an operating table; she is the result of an experimental rejuvenation treatment. He frees her, but does not realize he just caused the outbreak of a virus that will change doctors, patients and his mother-in-law into bloodthirsty zombies.
One day, Plop receives a letter from his grandfather, Kabouter Knap, stating that he is very ill. The only thing that can save him is the juice of the carob root. Before the hourglass is emptied, Grandpa Knap can be saved but there is one big problem: Plops grandfather lives on the other side of the gnome forest. Together with Plop's friends, they build a large balloon, so that they fly to Knap in time. Plop stops the juice of the carob root in a basket of puff cakes to keep it safe. But because Plop is so tired, he sinks down on a chair and falls asleep. The next morning, Smul is extremely hungry and, without realizing it, takes the basket with the plop cakes. Plop does not notice this, because he is still sleeping next to the basket of puff cakes. When Smal starts looking for Smul, the hot air balloon rises, with Plop, Klus, Kwebbel and Lui in it. There starts a dangerous journey..
