The Kite Runner is the story of Amir and Hassan, two boys in pre-Soviet Afghanistan. Amir is the son of a wealthy merchant, Hassan a servant. The two have an uneven friendship. Hassan is secretly Amir's half-brother, a product of his father's indiscretion with a servant. The two grow apart during the war and the subsequent rise of the Taliban and Amir journeys to America where his father passes away. He returns to Afghanistan to claim Hassan's son in the wake of Hassan's death at the hands of the Taliban.
Sohrab tries to commit suicide rather than be put in an orphanage. He survives, but he tells Amir he wishes that he had died. Sohrab does not speak for a year after that.
Amir and Sohrab go home to America. Sohrab remains silent.
At a party thrown by the American Afghan community, Amir buys Sohrab a kite. The two of them kite fight together and win. Just as he and Hassan had done years earlier. Amir is Sohrab’s kite runner, and for the first time Sohrab smiles for Amir.