Golden Kamuy (2018)

S1E1 Wenkamuy

Sugimoto Saichi, known as "Immortal Saichi" for his unmatched survival skills, is panning for gold in the remote northern wilderness when he learns of a hidden treasure left behind by a death row convict. Intrigued by the possibility of riches, he sets out to find the treasure, unaware that the quest ahead will be much longer and perilous than he ever anticipated...