Two years have passed since the event of
Mermaid Project
, and Romane and Brahim have paid the price of their courage and integrity. Ignored, even censored, by their superiors, they're now reduced to taking lousy private eye jobs to earn a living. Meanwhile, though, the same cetaceans whose advanced intelligence the UN had refused to believe in are attacking fishing trawlers … with rockets! Before long, the authorities ask our two investigators to take their old jobs back …