In exchange for his freedom from a secret Moroccan prison, deep-water salvage diver Jonah Blackwell agrees to lead a covert search for a missing research team in the dangerous coastal waters of Somalia, an area plagued by pirates and a deadly red tide killing all marine life within its reach. But when his expedition threatens the ambitions of billionaire industrialist Charles Bettencourt, Jonah's survival depends on hijacking a hostile submarine and assembling an unproven crew who must simultaneously investigate the source of a mysterious oceanic plague and face down Bettencourt's...