Gracie, a young schoolgirl living in England, and Tommy a young boy from Scotland adore their beloved cuddly toy dogs. They take their 'best friends' with them everywhere they go, especially when they take part in their daily after school activities.

Gracie and Tommy struggle to cope with the loss of their cuddly dogs when they suddenly disappear, and it is up to their parents to find the solution.

But when a mystery package arrives unexpectedly in the post, both sets of parents must deal with the fallout when another toy dog joins in the mix.

Lost is a heart-warming story about children coping with the loss of their most beloved toys and explores the lengths parents will go to keep their children happy.