In 1975, two children hiding after being caught robbing apples found a slab of concrete with a crack in it in a Co Galway town. They looked underneath and saw what appeared to be piles of tiny bones. Decades later, their accidental discovery led to a mass grave being uncovered on the grounds of a former mother and baby home in Tuam. But what happens now to the remains they found? And how can family members who believe their loved ones are buried there get answers?