Lin Xi, a top-tier medicinal herb hunter, meets a spiritually gifted puppy named Xiaobai with an extraordinary sense of smell during an expedition. Gu Tingsheng, president of a pharmaceutical group, urgently seeks rare medicinal herbs to develop a groundbreaking new drug that can save lives. Their paths cross through their shared pursuit of medicinal plants. Together, they cross freezing snow-covered mountains and venture deep into primeval forests, overcoming countless natural hazards with Xiaobai's guidance and their exceptional courage and intelligence to bring precious herbs safely out of the mountains. Eventually, the life-saving drug is successfully launched, benefiting countless patients. During this perilous expedition, Lin Xi and Gu Tingsheng become each other's most steadfast partners, setting off on a new journey to explore nature's wonders with their adorable dog.