Something is pulling at John Mezzogiorno. Voices from the past are calling him back to tell their story, in in doing so to tell his own. Immigrant Son follows John's attempt as a fourth generation American to make sense of his past, the travails of his ancestors who came to the new world, and ultimately America itself. From a traffic jam on the Cross Bronx Expressway, to idyllic sloping hills and lush pastures of Central Italy, Immigrant Son takes us on a journey through time. Pasted and spliced together with over a century of sound and image, and motivated by a real story to tell, it is perhaps best suited as a dialogue starter on the question of what it means to be American.