Filmmaker Mark Pedri had never heard his grandfather Silvio’s story, despite spending nearly every day with him for ten years. It wasn’t until after Silvio’s death that Mark found an archive of old photos, letters, and documents detailing Silvio’s horrifying experiences as a prisoner of war during World War II.

The discovery inspired Mark to bike across Europe with his wife, the film’s producer Carrie McCarthy, following the original POW transportation routes, in an effort to better understand his grandfather and tell his story.