For 45 years, Jen-Shiu Hsu has used photography and writing to explore the intricate universe of nature. He has tirelessly shared his discoveries with the world, exposing both its beauty and the destruction caused by human civilization. But in 2019, after undergoing surgery for the first time in his life, he became acutely aware of time. Suddenly, his lifelong rhythm of exploration faced an unavoidable limit. His final, unfinished expedition—will it be the closing chapter of his journey, or the start of something new? This documentary observes a man who has always sought the core of nature, now faced with the reality of his own mortality. As he embarks on one last great adventure, the film also captures how the filmmaking team, through their own journeys, begins to question their relationship with nature and their understanding of life itself.