The story is about a friendship between a boy and a robot. Jun Bao is a Chinese boy who lives on a typical 1960s Singapore housing estate. He enjoys making small robots until one day he found the parts he needs for a big robot. The robot that he made is curious about the world around it. Jun Bao began to test his robot to ensure that it is functional. However the curiosity of the robot brings not only joy but trouble to the boy.