It's 1950. American forces have landed at Incheon and driving north towards the Chinese border. The politically ambitious warmongering American military leader Douglas MacArthur insists on bombing Chinese border locations to cut off supplies and retreat for the North Koreans. Chinese leader Mao decides to answer the provocation and sends in the PLA. They would confront the Americans at Lake Changjin. The Americans would call it, the Battle of the Chosin Reservoir.
I'm not going to argue for accuracy. There is a definite deliberate slant to its views but it's not overtly wrong. A perfect example happens quite early. Somebody gets CGI happy and puts in a sky full of American fighter planes. There is more chance of them flying into each other than bombing the right targets. It's insane how many planes are in the sky on their bombing run. It's like a WWII mass bombing raid except it's utter chaos. Something similar happens to the American characters with one exception. There is one heroic competent war leader. Otherwise, the Americans are mostly arrogant, fat, and throwing up his breakfast. It's a political slant to sell to the Chinese public. I would compare this to Pearl Harbor without the romance. It's not a good thing. The CGI is a micro-step down from that. The story is over-the-top melodrama. The film is using a lot of slow-motion action. The best war scene happens quite early with the soldiers faking dead on the dry river bed. If it stayed semi-realistic, this could have been good.