Haji Baba, an old man whose old bike is his only companion gets hospitalized in a car accident. The event makes his children come together again. Haji Baba’s grand children have little time to find and return his bike before the grandfather discharging from the hospital, because they all know how much he cares for his bike. 5 grandchildren try their best to find the bike by searching around the city of Esfahan and helping out Internet cyberspaces.