Witness a clash of oceanic titans in the remote crystal-blue battlefields of Ascension Island. Yellowfin tuna and mako and tiger sharks are all apex predators, but to these sharks, yellowfin tuna are the ultimate prize. The tuna are often faster, fitter and bigger than the sharks, reaching well over 113 kilograms. Any shark hunting these beasts needs brute strength and a little bit of luck to capture one. But when a third player enters the game, the scales tip. Who will win?