When Max goes out looking for troll’s footsteps, he climbs the fence of luxury hotel Dikkersdorp. Caught by a security guard who mistakenly holds him responsible of a theft orchestrated by the mysterious Pie, Max is in trouble. Luckily, his new neighbor Sellie sets him free and, together, they meet with Trollie. Unfortunately, Sellie’s father hears about the troll and goes out of his way to expose the creature to the public. But Trollie is very miserable being put in display and Max stages his escape to reunite his troll friend with his family in the land of Ekeby.

Max, 10, spends Christmas with his family at his grandmother Mimi's house in the mountains. Mimi tells Max stories about trolls, elves, and fairy tale creatures. Max believes her stories, and all his cousins make fun of him. One day, Max walks on the frozen lake, but the ice breaks and he falls into the icy water. He is saved by a troll.

When Sinterklaas and Diego arrive at the harbor in Spain, they discover that the pakjesboot has already departed. This marks the start of a race against the clock to catch up with the boat in time. That’s not easy, because thanks to the meddling of the crooks Joris and Boris, the Piets left for the Netherlands a day early...

Many people are feeling the effects of the economic crisis — including the struggling businessman Brutus Brein. His company’s numbers keep sinking deeper into the red, and desperation grows. The only one who remains untouched by the crisis is Sinterklaas. Seeing a chance to solve his financial troubles, Brutus tries to convince the good saint to buy his products. But when Sinterklaas shows no interest, Brutus joins forces with his mother, Dr. Brein, and her henchmen Joris and Boris to devise a cunning plan to rob him. Meanwhile, two children, Milan and Eva, stumble upon Brutus’s scheme. Determined to stop him, they do everything they can to warn Sinterklaas...

Sinterklaas wants to be absolutely sure that all the presents will be delivered on time. To make that happen, he has come up with a clever plan: a secret gift storage facility in the Netherlands! Months before the official arrival, he secretly goes to check how things are going. But when he arrives, he gets the shock of his life: there are no presents at all! The Piets have received false instructions, and the arrival ceremony has been mysteriously canceled. Someone is pretending to be Sinterklaas — but who…?

When Joris (Martijn Nellestijn) and Boris (Richard de Ruijter) of a notary is an important but mysterious heirloom in hands, the duo goes in search of the precious possessions of their ancestors. While Inspector Jankers (Frederick the Great) thinks that the duo wants something naughty tricks, he follows them to the island of Cyprus. If George and Boris friends with Max, Michael and Anna end up in the hotel Aunt (Inge Ipenburg) and her sidekick Grudo (Bartho Braat). These two, however suspiciously interested in the quest of the group of friends ...

The planned marriage between Premierpiet and Probleempiet is in jeopardy, scholars Hans and Frans Steenstra have been kidnapped, and a rare ruby has been stolen from the Rijksmuseum. The dangerous Dr. Brein is behind all of this. Sinterklaas must intervene and even sends his Pieten on a trip to Switzerland to prevent Dr. Brein's criminal organization from gaining power.

The Piets are facing a modern problem. Most chimneys have disappeared, and many houses today are protected by alarm systems. The poor Piets are constantly chased by the police whenever they try to deliver presents to the children. One by one, they end up in jail. While Sinterklaas is busy trying to solve the Piets’ dilemma, he is kidnapped by the wicked Dr. Brein and her henchmen, Joris and Boris. Meanwhile, Pieta and Mrs. Dakjes are trying to teach a group of young Piets the skills they need for the job. They are also bothered by Michiel who wants to interview Sinterklaas for the school newspaper. Pakjesavond is approaching fast, and for both the Piets and Sinterklaas, it becomes a race against the clock to find a solution in time and save the holiday...

When something bad happens at Aunt Til's exposition, the Sinterklaas fest seems to end once and for all. A series of terrible events is set in motion, which treatens to free the evil Dr. Brein and her accomplices.

When Sinterklaas has an accident during the test for his “roof certificate,” he ends up in the hospital. Everyone is terribly worried — everyone except the evil Dr. Brein. She wants to use this opportunity to become Sinterklaas herself and change the holiday forever...