Gu Dade (Wu Ma) lives a monotonous and frugal life alone in a Shanghai lane since his son and daughter-in-law moved to the United States. Only when his god-daughter (Carina Lau) comes to see him, he will cook a few more dishes in a good mood. One day, a call from his son breaks his peaceful life. His grandson Gu Ming (Kwan Yuen Wong) will come to live with him for a period of time to affiliate their further study.. However, due to the clash of cultures and generation gap, the American-born Gu Ming still keeps his thinking regardless of Gu Dade’s contradiction. After a quarrel, Gu Ming runs away from home, but is taught a lesson... As Gu Ming’s leaving date approaching, Gu Dade and his peers in the lane show a sense of reluctance......