In a small and charming town where Christmas is celebrated with enthusiasm, a group of children, led by the intrepid Emma, begins to question the existence of Santa Claus after a mysterious neighbor, known as the "Grinch of Maple Street," reveals that he is nothing more than a commercial invention. What starts as a simple curiosity becomes an obsession, and Emma, along with her friends, embarks on an epic investigation to uncover the truth about the Christmas legend.