第 11 集: 鐵臂阿童木與來自未來的少年踏上前往古代世界的旅程，尋找失蹤的少年父親。

11

A boy who comes from the future is looking for his father, who has gone to capture ancient creatures and has never come back. So Astro Boy and the boy depart for the ancient world in search of the boy's father. (Source: Tezuka Productions)