Lily's world gets turned upside down when she wakes up one morning and can't find one of her favourite toys, Moosehead. With Rosie Bear by her side, Lily goes through her house searching for her friend. Along the way she encounters the other inhabitants of the house who she turns to for help. These are the house cat Mia, a bath toy called Baby Duck and a particularly helpful spider. Together they unravel the mystery and reunite Lily with her friend.