In 1886, a French marine biologist aboard an American warship is scouring the Atlantic Ocean in search of a sea monster that routinely attacks and sinks passing ships.In 1886, a French marine biologist aboard an American warship is scouring the Atlantic Ocean in search of a sea monster that routinely attacks and sinks passing ships.In 1886, a French marine biologist aboard an American warship is scouring the Atlantic Ocean in search of a sea monster that routinely attacks and sinks passing ships.