Tilly Trotter seems to have finally found lasting happiness in her engagement to Steve McGrath. But just as everything falls into place for Tilly, it seems to be falling apart for her loved ones! Whilst her son, Willy, is refusing to acknowledge the existence of his newborn illegitimate child, her adopted daughter Josefina has slipped into a deep depression after tracking down her real family in America. Tilly is determined that with Steve by her side she can find a way to get her children through their troubles. But she hasn't counted on the malicious ways of Steve's mother and her oldest enemy, Mrs McGrath. A bitter and twisted old woman, Steve's mother will stop at nothing to destroy Tilly's happiness. And Tilly knows that finding a way for her family to be free to live their lives in peace is going to take all her strength and courage!