Nam-Ok who has Yun-Ho and Yun-Suk remarries widowed Heung-Yeol who has Hyeong-Tae and Hyeong-Ja. Nam-Ok are concerned about frequent quarrels between half brothers and sisters, but manages to deal with them wisely. As Yun-Ho who went to fishing with him falls into the water, Heung-Yeol tries to save him only to drown himself to death. Fifteen years later, Hyeong-Tae goes abroad to study while Hyeong-Ja lives in extravagance in Seoul. Yun-Suk gets to know Dong-Oh on the train, and Dong-Ho gets to like her, but later misunderstands her due to Hyeong-Ja's scheme, which causes Yun-Suk to commit suicide.

This is a Democratic People’s Republic of Korea and Union of Soviet Socialist Republics co-production. This film is set during World War II, and is about a female Russian soldier named Masha. She is on a mission to discover a secret Japanese base in Korea. Everybody who accompanies her on the mission shortly dies, and she’s forced to stay with a local fisherman. She is trying to get the information about the base location back to the Russian army, because if she doesn’t, the Japanese will unleash the “Sakura Plan”, which is an all-out biological warfare assualt on the world.

An Emissary of No Return retells the story of a real historical event in 1907 known as the Hague Secret Emissary Affair. Korea had been colonized by Japan. In order to protest to the international community, the Korean emperor king Gojong sent three secret emissaries to the talks of the Hague Convention of 1907, to get the great powers to overturn the Japan–Korea Treaty of 1905.