Gypo Nolan is a former Irish Republican Army man who drowns his sorrows in the bottle. He's desperate to escape his bleak Dublin life and start over in America with his girlfriend. So when British authorities advertise a reward for information about his best friend, current IRA member Frankie, Gypo cooperates. Now Gypo can buy two tickets on a boat bound for the States, but can he escape the overwhelming guilt he feels for betraying his buddy?

Having returned from fighting in World War I, James Allen doesn't want to settle into a humdrum life and decides to set off to find his fortune. He travels the length and breadth of America, working as a skilled tradesman in the construction industry. When times get tough however, he finds himself living in a shelter where an acquaintance suggests they go out for a hamburger. What the friend really has in mind is to rob the diner and Allen soon finds himself working on a chain gang with a long jail sentence. Allen manages to escape however and heads to Chicago where over several years he slowly but surely works his way up the ladder to become one of the most respected construction engineers in the city. His past catches up with him and despite protestations from civic leaders and his many friends in Chicago, he finds himself again on the chain gang. Escaping for a second time, he accepts that to survive, he must lead a life of crime.