During the time when Manchuria was a puppet state of the Empire of Japan, a young woman from the Northern Country engages in a life-and-death struggle against her enemies and earns the name Snow Queen. After the Mukden Incident in 1931, the Gu Family, who had been resisting the Japanese military, is massacred. Only their adopted daughter Gu Xue Ying escapes and she travels to Qiqihar to reunite with her fiancee Gu Zhao Long, who has infiltrated the Manchukuo military. Believing her fiancee has betrayed the family, Gu Xue Ying vows to kill him. Her journey takes her to the Qian Mountains where she joins a band of freedom fighters and takes part in the Defense of Harbin. She and Gu Zhao Long encounter each other several times as opponents in battle. Meanwhile, she finds herself falling in love with military strategist Shen Lei Zhi.