Somewhere in the Netherlands lives an auntie. She hates Sinterklaas. So much so that she wants to make sure that Sinterklaas never comes to the Netherlands again!
Aunti devises a devilish plan: bake gingerbread cookies that will make everyone forget about Sinterklaas. In the park, she captures a Piet to test out her special gingerbread cookies. Sinterklaas comes in search of the Piet and accidentally takes a bite out of auntie's gingerbread cookies himself! Now, Sinterklaas only wants to make Christmas centerpieces... And what's in that mysterious little suitcase? Will they be able to stop auntie?