Peep lives in a cozy toy shop in beautiful Edinburgh — until one day he is chosen as a special gift for a little boy in Moscow. But during a rainy walk through the city, a sudden gust of wind changes everything… and Peep is lost.

Alone in a big unfamiliar world, the small toy mouse must find the bravery to ask for help. With the kindness of friendly city animals — and a postcard that holds an important clue — Peep begins an unexpected journey that carries him across countries and closer to his new home.