Katie O'Brien and her four daughters land in America with plenty of hope and little else. They quickly fall prey to a scheming landlord, but despite this, one of Katie's daughters, Colleen, falls in love with his son -only to realize he may be as conniving as his father. Another daughter, Mary, finds herself torn between helping their desperate neighbors and keeping the trust of her family. The other daughters must cope with schoolmates who hate immigrants and a young bunch of pickpockets. Despite all the hardships, however, each of the newcomers ultimately comes to understand what liberty really means. Set at the turn-of-the-century, the large, richly-textured cast shows us what it takes to pursue happiness on Liberty Street.