北海有暴雨洪水，有浩瀚潮汐，有高耸的沙丘和崎岖的海岸线，还是鸟类迁徙最重要的交通枢纽。一年四季中，这里的海滩不仅吸引着游客，还吸引了无数的海豹前来。然而，北海如此变幻莫测，人们对其知之甚少，她复杂纷繁的海底世界始终难以接近。

Three things are certain about base jumping. You will break your bones. You will watch your friends die. And – if you do it long enough – it will eventually kill you. In this heady, testosterone-packed environment, adrenaline junkie Karina Hollekim is regarded as one of the best of the best. We follow Karina for several years as she hurls herself off increasingly treacherous cl...