由坎城金棕櫚名導是枝裕和親自企劃，以細膩的人文視角，深度探索日本流行文化中「英雄」與「怪獸」的起源，以及創作者潛藏於影像中的創作哲學。深入剖析《超人力霸王》獨一無二的世界觀：即使主角是英雄，每一隻怪獸也都擁有完整且充滿悲劇色彩的生命故事；同時細緻解析角色設計中蘊含的現代美學，並聚焦「特攝之神」圓谷英二及其團隊卓越的創意理念與精湛工藝，帶領觀眾重新追溯《超人力霸王》如何一步步走向世界，成為跨越一甲子、影響數代人的全球文化傳奇。

Recently retired from a company after some 40 years of service, Sunada Tomoaki, father of filmmaker Sunada Mami, is diagnosed with terminal cancer and only has a few months left to live. True to his pragmatic core, Sunada sets out to accomplish a list of tasks before his final departure: playing with his grandchildren, planning his own funeral, saying “I love you” to his wife, among others. In a voice over, using words taken from her father’s diary, filmmaker Sunada speaks tenderly in first person as the elder Sunada.