Can Jack live with a lie just to keep those he cares about happy? Best friends Jack and Gilbert can’t wait to work in the mines at Moonta when they turn 12. But when that day comes earlier than expected, the reality of the mining lifestyle lived by generations of Cornish immigrants isn’t what the boys expected. And Gilbert actually misses school, learning and playing with his friends. Will he have the courage to follow his heart or will he keep his promise to Jack?