There's an alien on the loose, and this one is so deadly that the Earth's only chance at survival is in the hands of the legendary Planet Patrol. It's a tough job--the alien is gigantic, well armored, able to live underwater, extraordinarily ill-tempered, and known only as Kraa! Luckily, the Planet Patrol is made up of four extremely precocious crimefighting kids with experience in ridding the world of aliens and other life-threatening creatures. ~ Tracie Cooper