The film Shiwei Island is adapted from a real historical event. It is said that after the 1968 Cheong Wa Dae incident, then President park chung-hee and the Korean Central Intelligence Agency created a special force composed of prisoners. The government requires that these people be trained as professional agents in the shortest possible time. Their task is to enter Pyongyang and take off Kim Il Sung's head. Later, due to various historical reasons, this unit became a hot potato, just when the government decided to secretly execute them. These people made trouble and finally committed suicide in Seoul on August 23rd, 197 1. Afterwards, the South Korean government called it a terrorist incident organized by the Korean guerrillas. Three days after the incident, South Korean Defense Minister Yu Air Force Chief of Staff was dismissed. Does this unit exist? Are they "death squads" formed by the South Korean government or guerrillas in North Korea? After the incident, many news media organizations tried to uncover the truth of the "Shiwei Island" incident, but they failed, and this history was deeply buried. Later, the hostages who were hijacked at that time also said that the terrorists didn't seem to want to hurt them, and the South Korean government forces shot first. Why do they go by bus collectively? If they are terrorists, it may be more appropriate to disperse their activities. Who are they? The truth was buried for 32 years. After the secret records of the government in military intelligence agencies were made public, the Shiwei Island incident was once again talked about by people. The film focused on the complicated history at that time, and gradually revealed the truth, only to arouse the audience's appetite.

The theme of this film is very sensitive, and it is full of tragic colors in the conflict between political ruthlessness and human warmth. Soldiers and prisoners have lived together for three years, and they have established deep feelings, perhaps more of a sense of identity between men. This is a film that belongs to men. When a determined general received an order from his superior to execute the special forces he personally trained, the conflict between love and law pushed him into a desperate situation. How to choose between the dilemma, whether to execute the special forces or disobey the orders of his superiors, he is a loser anyway. The tense atmosphere makes people feel that fragile humanity is vulnerable to powerful and ugly politics. Finally, the legends of soldiers and special forces are full of tragic plots. In the ever-changing war years, who can control their own destiny? The film is full of sympathy for these people, and also reflects the pain and political disgust of the North-South split.