16-year-old Radio and his team have trained their entire lives to explore alien exoplanets. Now as they touch down on an undiscovered world, it's their chance to put that training to use. Only instead of being the adventure they thought it would be, their first mission has become a nightmare. Something is hunting them. Even more disconcerting, a ship has appeared above the planet, filled with the foot soldiers of their ruthless enemy. Radio knows if they discover his team, the consequences would be deadly. In order to survive, they must trust their instincts and training: otherwise their first adventure could be their last.