By the Min River, in a centuries-old riverside town, the clock that boatbuilder has used for decades finally stops ticking. Sixty years later, he recalls a childhood dream: a boat flying through the sky. From that dream rise mountains made of time. Through memory, myth, and everyday labor, the film drifts between the real and the imagined, tracing how one man carries his life, his dreams, and his loved ones across the flowing river of time.