In a quiet fishing village in Japan, a group of fishermen living in harmony with the sea embarks on a routine fishing day. However, their lives change dramatically when they find themselves caught in a nuclear test. During one of their expeditions, the men are startled by an explosion that erupts on the horizon, leaving a trail of horror and confusion. At first, they think it is a mysterious natural phenomenon, but they soon realize that what they have witnessed is the result of an atomic detonation on a distant island in the Pacific.
The traumatic event not only confronts them with the devastation of modern military technology but also triggers serious health consequences, as they are exposed to dangerous levels of radiation. As they struggle to recover and understand the extent of what has occurred, their lives become embroiled in a dark series of events that test their resilience and values. Amid suffering and fear, the fishermen must confront the authorities, who attempt to hide the truth to protect their interests.
This tense drama serves as a poignant critique of nuclear energy and its devastating effects on human life and the environment. Using the story of these men as a backdrop, the film becomes a powerful reflection on the fragility of life and the cost of progress, leaving the viewer with a profound sense of unease.