As widespread power outages cause chaos and threaten lives across the country, the COBRA (Cabinet Office Briefing Room) committee comprised of the UK’s leading experts and politicians, gathers to find a way to turn the lights back on.
Prime Minister Robert Sutherland is plunged into chaos when an environmental demonstration meets with grave consequences, just as his popularity is plummeting in light of a controversial police-protest bill. As an investigation gets underway, the PM is forced to reckon with the possibility that the most dangerous rebellion has come from within.