Dev Cameron was planning to join the Navy when he was drafted into the Guard - 'groundpounders' consigned to do the dirtiest work of interplanetary warfare. But before the situation can be rectified, the reluctant warrior's heavily armored unit is rocketing to the stars to do battle with the Xenos - an inscrutable, illogical and terrifying race of alien monsters committed to the annihilation of all other galactic species.