故事发生在明朝嘉靖年间，那时倭寇泛滥、海贼肆虐，南方沿海地区的百姓苦不堪言。本片以抗倭名将俞大猷为主角，讲述了青年时期的俞大猷识破倭寇与海贼的诡计，勇敢与之斗争，保卫民众和大明疆土的故事，表达了强烈的爱国主义情怀和浓烈的民族自豪之感。在本故事中，少年俞大猷经历了从稚嫩到成熟的蜕变，年少时的俞大猷只想名扬天下，做一名大侠，在与海贼、倭寇的斗争中，他逐渐明白了人生的意义，所谓侠之大者，当为国为民。长剑所指，当匡扶天下。
At the Edge of the World chronicles the controversial Sea Shepherd Antarctic Campaign against a Japanese whaling fleet. The international volunteer crew, under-trained and under-equipped, develop a combination of bizarre and brilliant tactics with which to stop the whalers. But first they must find the Japanese ships, a far more difficult challenge than ever imagined - long-time activist Paul Watson and first-time captain Alex Cornelissen employ an array of strategies in the hopes of finding an elusive adversary in the vast expanse of the Ross Sea. With one ship (the Farley Mowat) too slow to chase down the whaling fleet, with their second ship (the Robert Hunter) unsuited for Antarctic ice conditions and with no country supporting their efforts to enforce international law, the situation becomes increasingly desperate. Against all odds, however, a real-life pirate tale unfolds - a modern-day "David vs. Goliath" adventure. Written by Dan Stone
