After the great floods, the world's coastal cities survived by building huge domes that kept them safe from the rising waters, but they couldn't protect them from political upheaval. The Wave Party's leader Saxon Cole is trying to wrest control of the government. A deadly explosion in the underwater city of Aquataine causes a mass evacuation to the surface, and the secretive group known as the Undercurrent suspects sabotage. When one of the Undercurrent's...