The movie records the precious images of Yang Zhenning, Xu Yuanchong, Wang Xiji and other 16 students of the Southwest United University with an average age of more than 96 years old, and recreates the legendary history of the Anti-Japanese War period when Tsinghua University, Peking University and Nankai University moved south to Kunming and established the Southwest United University. They have made outstanding contributions to the construction of New China and struggled throughout their lives, giving birth to a number of Nobel Prize winners, "two bombs and one star" fathers, "the first Asian translator", and other people who have made great contributions to the country and even the world, and have had far-reaching impacts. The movie tells the story of the tough and resolute The movie tells a touching story about the course of running the school and the concept of "education to save the country, study to serve the country", and portrays a group of masters with bright and dazzling style and integrity.