Ten-year-old Bloem is completely crazy about Sinterklaas' horse. After several attempts, she finally convinces Sinterklaas to let her ride his horse, but then something terrible happens. During a ride outside the castle, Amerigo loses his magic horseshoe. Sinterklaas' horse does not have normal horseshoes, but one golden horseshoe. Without this magical horseshoe, Amerigo cannot climb onto the roofs. Sinterklaas does not want to worry his helpers and starts a search together with Bloem. Will they find the horseshoe in time, or will this year's gift-giving evening have to be canceled?