Romane has gone to Brazil, hoping to renew contact with Delphis, her dolphin friend, and find an explanation to the ongoing attacks by sea mammals against human ships and ports. Meanwhile, Brahim and Kruger continue their investigations in Mozambique. But their enemies, the white supremacists who still run Algapower, and their terrorist allies from the American White Army, know they're being hunted, and have no intention of being stopped again. A fight for the future of several species begins ...