A first-grade primary school teacher in a poor suburb of Tehran assigns a letter to each student and asks them to bring items related to their fathers’ jobs which start with those assigned letters. Mehdi’s father is a fruit seller, and he must bring 30 apples (“Seeb” in Farsi) to the class on the “S” Day. However, an unfortunate event immerses the family in a crisis. Saeed, Mehdi’s older brother, should find a way to overcome this challenge and help Mehdi for “the apple day”.