Cameron Kates, a hard-hitting Navy SEAL hiding the secret of her early pregnancy, gets pulled begrudgingly into a mission with her husband, Justin. Along with a ragtag squad of soldiers, ordered on this babysitting mission against their will, she must escort Dr. Rex Williams, a renowned ecotectonicist, to the chaotic continent. Rex is forced to brave the extreme and unprecedented dangers of such an expedition for one reason alone--so that he can position critical seismic equipment on Sangre de Dios, a desolate and depopulated island in the Galapagos. Others have recently vanished from the island without a trace.