巴西东南方外海上，一组由寻宝猎人组成的精英团队要测试刚出炉的全新理论，揭开传说中价值高达数亿美元宝藏的落脚之处。而他们所蒐集的种种证据资料，引领他们来到无人敢前往的一座岛屿，偏僻、险象环生并且有数千只致命毒蛇在岛上乱窜。这座岛名为大凯马达岛，当地人称之为蛇岛。人称「三位一体宝藏」传说中的宝藏是此趟寻宝之旅的目标。这批宝藏已经在世上长达近500年的时间无人寻获。十六世纪时，据传一群来自葡萄牙的征服者在航海途中，穿越地图上未记载的巴西丛林，偷走大批的印加黄金宝藏。
The world's most enormous machines are stripped down and torn apart to discover their hidden secrets and to reveal out how each one has changed our world in its own unique way. Engineering Giants is a documentary series which takes a look at the making of some of the world's hughest machines.
