The bluefish, a symbol of Istanbul, faces the threat of extinction. This fish is truly a Bosporus legend. The Bosporus has already lost some of its famous inhabitants; the giant blue-fin tuna and its predator, the great white shark, no longer swim through those waters. Lobsters that were once plentiful in the Sea of Marmara, swordfish and the Mediterranean seals, are also long gone. Most recently, the Bosporus mackerel disappeared. Is the bluefish next in line? This film combines magical underwater footage, interviews with fisherman and activists, to showcase the fish story with great sensitivity.