The world has changed forever, ravaged by climatic upheaval. The flooded metropolis of London has adapated to the rising sea levels, remaining a centre for international commerce and a magnet for environmental refugees. The elite gaze out over the ever-expanding Thames from their ivory towers, while the denizens of submerged pubs peer into the sunken streets like specimens in an aquarium. Hired by notorious underworld figure Alexandra Bastet, Leo Noiret uncovers a terrifying conspiracy that stretches from the depths of Drowntown to the highest echelons of power and influence. Struggling aqua-courier Gina Cassel learns that young love can be a dangerous game when she becomes romantically involved with the heir to the Drakenberg Corporation, which aims to control both the environment and the future of human evolution. There's a storm brewing in Drowntown, with Gina and Noiret at its heart ...