Fred, Luisa, and Drake are selected to write the school's winter pageant, and Fred is excited. Though he quickly realizes that writing a play is harder than he thought.

Luckily, Luisa's famous uncle, Juan Pierre Reyes, a Broadway director, arrives to help. After some brainstorming, Fred comes up with the idea for the What-If Winter Wonderfest. The power of imagination transforms their play into a chaotic yet fun adventure, bringing to life characters like Frankinschool, Princesa Luisa, Drakeula, and Frank, the school's resident ghost. Together, they explore the secrets of peace, light, and wonder during the festive winter season.