The film focuses on the of the Chinese People’s Volunteer Army (PVA) and their pivotal role in the Battle of Chosin Reservoir during the winter of 1950.
The film utilized 70,000 PLA soldiers as extras and employed forty to fifty special effects companies.
It emphasizes the "fighting spirit" and heroic sacrifice of soldiers who froze to death at their posts (the "frozen ice sculptures") to repel U.S. forces. 3. The Role of English Subtitles