Bonnie Franklin, Mackenzie Phillips, and Valerie Bertinelli keep on doin' what they do in the third season of One Day At A Time! Focusing on the strong-willed women of the Romano family — single mom Ann (Franklin) and daughters Julie (Phillips) and Barbara (Bertinelli) — One Day At A Time mixed hilarious situations with timely and timeless social themes, making the series a favorite destination of audiences for years, eventually inspiring an equally successful reimagining in 2017.