It tells the story of a young girl whose family moves into a new house. Outside, she can hear other kids playing, but she’s too shy to say hello. So she picks at the old wallpaper in her room―revealing an entryway to a fantastic imaginary adventure world behind the walls.

    They have no idea what they'll find on the other side, and Max the duck is the last thing they expect. Soon this larger-than-life houseguest is making himself at home—and forcing his way into the hearts of his reluctant hosts.