The movie "The Island Guardian" tells the story of Wang Jicai (played by Liu Ye) and his wife Wang Shihua (played by Gong Zhe) guarding Kaishan Island, a small island on the border of the motherland for 32 years. Wang Jicai was the director of the militia post on Kaishan Island in Guanyun County, Jiangsu Province. He and his wife took the island as their home and lived with the sea, dedicating their beautiful youth to the cause of coastal defense of the motherland. The film selects classic clips and shining moments of Wang Jicai and his wife's island guarding career, showing the rich inner world of Wang Jicai and his wife and their patriotic feelings of "guarding the island is guarding the country" from different perspectives. The film not only restores the experience of Wang Jicai and his wife's 32-year tenacious struggle against the harsh natural environment, but also runs through the protagonist's value pursuit of patriotism and dedication throughout the film. It is a deep spiritual observation and spiritual nourishment for people from all walks of life who stick to the ordinary and create extraordinary things.