In the 22nd century, Earth enjoys a tentative peace thanks to a treaty between the United States and the Eurasian Coalition. The hallmark of this new world is the Phoenix Space Elevator, enabling quicker transport from Earth to near-Earth orbit. When saboteurs destroy the Elevator, the authorities activate their top counterintelligence agents, Claire Haskell and Jason Marlowe, to unravel the mystery of who has broken the peace.