Biff Roberts, the CIA's counterterrorism director, receives actionable intelligence that a rogue regime is planning a sneak attack with the goal of exploding a nuclear device above the United States, triggering an unnatural Carrington Event. The cosmic storm of the Carrington Event's electromagnetic pulse waves released by the explosion would cripple all electronic systems and power grids in the U.S., leaving the homeland defenseless and vulnerable to conventional warfare. With North Korea looking to be the most likely suspect, Biff is tasked to intervene and prevent this attack without triggering a global world war. Collaborating with NIS, the South Korean Intelligence Service, Biff and his team work to thwart the impending disaster, while also leaving the CIA with plausible deniability.