In 1952, during the Korean War, the volunteer army gains the upper hand after numerous battles. To strengthen their position at the negotiation table, the United Nations Forces make a final stand at Shangganling, launching a fierce assault on October 14. For 43 days, the volunteer soldiers bravely resist and endure intense tunnel warfare under harsh conditions, demonstrating their resilience and determination to leave a lasting impact on the course of history.

Battle of Shangganling тривав 1 сезон. Нових епізодів не заплановано.