In order to receive a large inheritance and exact her father’s revenge upon his wealthy estranged brother, Pat(ricia) O'Day (Marion Davies) must travel to America from Ireland disguised as her ailing brother Pat(rick) O’Day. There she must avoid detection, honor a deathbed promise to her father, and check her anti-English impulses. Pat shows a knack for business, gets caught up in her cousin’s investment scheme, and must risk all to save the (extended) family’s home. Come for the fisticuffs, stay for the jigs!