Based on the beloved children's book by E.B. White, Stuart Little This is the 13-part animated television show. The series centers on Stuart, a 3-inch tall mouse who has been adopted by the Little family. Though on the outside he is smaller and furrier than the rest of the Little family, Stuart is bold and daring with an imaginative mind and an adventurous spirit. In his world, however, mundane objects become fantastically huge props and simple tasks like crossing the street can be major ordeals.