The race is on between the agents fighting to save a climate-battered planet—and the terrorists who want to defeat them . . . Agent Sim Atkins has returned home after surviving his last deadly mission, and all that he can think about is finding the criminals responsible for a heinous act. But his fury and lust for revenge are put on hold when a nuclear warhead is stolen. Spanning from a base on the moon to bleak Russian prison to a desperate underwater mission deep in the Norwegian trench, this heart-pounding conclusion to the compelling Gaia Trilogy is a journey through a near future world where international agents face down terrorists in an ongoing battle to keep Earth inhabitable for the next generation.