An elderly man, gravely ill, sets out with his grandson on a journey to find the boyβs biological mother. Guided only by an address given by the childβs father, the two travel across many places, enduring hunger, hardship, and countless setbacks. Yet they never give up. Along this long and difficult search, the grandsonβs initial misunderstandings toward his grandfather gradually turn into trust and reliance, as the two come to depend on each other for survival.