Simon is 12 years old at prep school and after falling out with his best friend, seeks solace in the History lessons where they are learning about WW1. Talking to his father, they unearth an old trunk from the attic that contains memorabilia including an old whistle...but what story does it hold?
Back in 1914, Tom Beal signs up to fight in WW1, along with his best friends from school. But the trenches prove unforgiving as young dreams and lives are shattered, culminating in the Battle of the Somme in 1916. As Simon researches what happened to his distant relative for a History project, he unearths the story of the old whistle and the fate of its owner.