The story surrounds a boy and a cow who have always lived their lives together. One winter, a famine strikes their village. The villagers resolve to the cow, but the boy secretly helped the cow escape. A few years ago, the boy (now grown-up) and the cow meet again...

The first animated adaptation of the popular manga series, this pilot introduces the main characters of "Lupin the Third" with montages, presented through a short frame narrative illustrating a typical gang escape.