The human world has entered the era of artificial intelligence. Droids are everywhere and Steel Sky City is above the clouds. The 11-year-old Feng Haoqi， living with his foster parents， dreams of finding his missing biological parents. One day， the Loong （Dragon） Pendant left by his biological parents shows him strange images and a flying Loong tries to talk to him in his dream. Hence， Feng Haoqi and his droid pal Quanta Boy embark on an amazing adventure.