Dylan Dreyer explores some of the most unbelievable -- and unbelievably cold -- places on Earth, from the ice fields of Patagonia to the snowy mountains of the Himalayas, discovering what thrives and survives in the world's most frigid ecosystems.

Dylan Dreyer returns to the incredible country of Thailand, where giants roam the forests and swim through the reefs of its diverse and vast ecosystem; visit highlights include fishing with the locals and looking for Asian elephants.