Passengers on an immigrant ship traveling to the new continent get caught in a mysterious riddle when they find a second vessel adrift on the open sea.

Belle and Sebastian is set high in the snowy Alps during the Second World War. The resourceful Sebastian is a lonely boy who tames and befriends a giant, wild mountain dog, Belle – even though the villagers believe her to be ‘the beast’ that has been killing their sheep.

A missing child causes four families to help each other for answers. What they could not imagine is that this mystery would be connected to innumerable other secrets of the small town.