Amir and Haassan who are bestfriends enter a kite contest and Amir wins. Hassan goes and retrieves the kite Amir cut down but he gets raped. They try not to talk about it, weeks go by and Amir frames Hassaan and then Amir father forgives them but Hassan father decides to leave anyway
Years go by and Amir and his father move to United States. Amir adapts well and after a while Amir father gets sick and Amir marries Soraya. Amir finds out that his father had aa affair and that Hassan was actually his brother but by this point Hassan hhas already died leaving a son who is the nephew to Amir. He then goes to find his nephew Sohrab
After a long journey Amir gets Sohrab and smuggles him into the U.S. and takes care of him like if he was his own son almost to repay Hassan for the messed up past. Sohrab and Amir fly kites just like Amir and Hassan did.