Academician Shen Huaishan is transporting precious potato research samples to Beijing when a dispute over a sleeper berth on the train results in the samples being accidentally damaged. Facing misunderstandings and difficulties, Shen Huaishan stands firm in his principles and leads his research team in a race against time to minimize the losses. The incident also teaches the mother and child involved the importance of respecting others, following rules, and having the courage to take responsibility. Using a box of seed potatoes as its central thread, the story highlights the sense of responsibility and dedication of scientific researchers while promoting respect for science, honesty, integrity, and courtesy in society.