It's 1924, and New York is the centre of the universe. Henry Smart, on the run from Dublin, lands on his feet. After the 1916 Rebellion, Henry Smart is running from the Republicans for whom he committed murder and mayhem. Lying to the immigration officer, avoiding Irish eyes that might recognise him, hiding the photograph of himself with his wife because it shows a gun across his lap, he throws his passport into the river and forges a new identity. He's a handsome man with a sandwich board, behind which he stashes hooch for the speakeasies of the Lower East Side. He catches the attention of the mobsters who run the district and soon there are eyes on his back and men in the shadows. It is time to leave, for another America... The Depression is sending folks to ride the rails in search of a new life and new hope, and all trains lead to Chicago. As Henry’s past tries to catch up with him, he takes off on a journey to the great port, where music is everywhere. Chicago is wild and new, and newest of all is the music. Furious, wild, happy music played by a man with a trumpet and bleeding lips called Louis Armstrong. His music is everywhere, coming from every open door, every phonograph. But Armstrong is a prisoner of his colour; there are places a black man cannot go, things he cannot do. Armstrong needs a man, a white man, and the man he chooses is Henry Smart.