To raise the exorbitant nutritional care costs for his seriously ill mother, Lin Yuan travels to a mist-shrouded remote island to work as a lighthouse keeper. The island has a peculiar ecosystem, with bizarre plants and animals everywhere, and its living conditions are extremely dangerous. To establish himself there, he relies on his skills to hunt and forage, sustaining himself with the island's natural resources. Day after day, life on the deserted island makes his body increasingly strong. When Lin Yuan packs up his supplies and prepares to return home, people in the outside world are utterly astonished. No one could have imagined that this seemingly ordinary lighthouse keeper had developed extraordinary abilities amid such peril.