Spirou and Fantasio who are in an economic slump, are forced to eat an inexpensive dinner, and as Fantasio chokes on a bite of Lucky's Pizza, they become the finders of the golden key.
Spirou and Fantasio, who are facing financial hardship, are driven to eat a budget-friendly dinner. This situation takes an unexpected turn when Fantasio inadvertently ingests a portion of Lucky's Pizza, resulting in their discovery of the golden key.