Eskandar, who was formerly the personal driver of “Hoveyda”-prime minister of Pahlavi regime- Claims of knowing a secret of Hovayda; but no one has taken his word seriously. Untill the day he meets Amir Vaziri and tells him about his secret that in addition collection of canes and pipes, Hoveyda has a collection of “paykans”; and once he predicted the upcoming political turmoil in the country hide a very valuable thing in the rear seat of one of twelve Paykans! So Amir and Eskandar begin the search for the hidden item that they don’t know what exactly is.