Four extreme kayakers from Spain face the Humla Karnali, the longest, mightiest and most voluminous river of Nepal. But before they even can begin with their actual goal of descending the Humla Karnali a 12 day long trip per bus, jeep and finally per foot are lying in front of them. While taking such an effort to start an even more challenging event they come across the almost untouched and pure nature of Nepal with all the down-to-earth and hospitable inhabitants living in midst it. 400km of navigation through a land stuck in the past, isolated from development, hostile but very cosy at the same time.