Hawai'i, the island playground to the rich and famous, is paying a high price for its popularity. Many of Hawai'i’s unique plants and animals are under threat from habitat destruction, development, pollution and perhaps worst of all, alien pests. Today, with so many native species struggling for survival, Hawai'i has become known as the endangered species capital of the world. We investigate a gruesome disease killing the region’s ancient green sea turtles, and in a magical moment witness the birth of a Hawai'ian monk seal pup. From below the waterline, to one of the tallest mountains in the world, viewers will see the struggle many Hawaiiian species face and meet the determined human helpers who are acting to save them.