In this charming children's story, Henry and his lovable dog Mudge face a long, dreary weekend stuck indoors due to bad weather. To combat their boredom, Henry's parents come up with the idea of building an indoor castle out of cardboard boxes. As the family works together on this creative project, they transform their living room into a magical play space, sparking imagination and fun. The story highlights themes of family bonding, creativity, and making the best of a rainy day.
