A mining colony on the moon. A teen sent on a deadly mission. And a secret bigger than two worlds. It's the 22nd Century. A tough, pioneering people mine the moon for Helium-3 to produce energy for a desperate, war-torn Earth. Sixteen-year-old Crater Trueblood loves his job as a Helium-3 miner. But when he saves a fellow miner, his life changes forever. Impressed by his heroism, the owner of the mine orders Crater to undertake a dangerous mission...