Huey is good at solving problems. Sometimes his older brother Julian tries to push him around, but Huey knows how to handle him. When Huey gets scared about their father's smoking, the boys work together to help him quit. But some problems are bigger than Huey or Julian. After a hunt for gold leaves Huey trapped at the bottom of a crumbling mine, he'll need more than cleverness and bravery—and more than Julian—to save him.