Superfish

Billfish—the ocean's largest, fastest, and most formidable gamefish—have long fired the human imagination, from the graceful sailfish and the formidable swordfish to the marlin, celebrated by Hemingway in The Old Man and the Sea. Marine biologist and filmmaker Rick Rosenthal journeys across three oceans in his bid to document them all on film, emerging as a fervent advocate for these endangered yet little-known ocean giants.