Discovery 艾爷（艾德·斯塔福 Ed Stafford）接受了一项任务，去探访地球上最新的谜团。由间谍卫星与国际空间站所拍摄的照片，显示出在地球上一些荒无人烟的地域，有着许多奇怪且难以解释的标记。从西巴布亚的巨大白色线条，到达纳基尔沙漠中的奇怪圆点，每一处标记都饱含着难以解释前所未见的反常事物。艾德将使出浑身解数，依托他在极端恶劣情况下的丰富经验，来揭秘其中的真相。
The mysterious jungles of Thailand are home to some of the rarest wild cats on earth - the Clouded Leopard, The Asian Leopard, The Indian Fishing Cat and the Indo Chinese Tiger. In one of the last truly wild corners of the world this extraordinary collection of secretive predators defend their last remaining stronghold. As their territories intertwine and continuously shift, these cats must cheat death on a daily basis if they are to survive and thrive out in these tangled lands.
Researchers discover film footage from World War II that turns out to be a lost documentary shot by Alfred Hitchcock and Sidney Bernstein in 1945 about German concentration camps.
