Phoebe West had always been extremely close to her sister Jodie. But when tragedy strikes, and Jodie and her husband Luke are killed in a house fire, Phoebe gets the shock of her life. Because Jodie and Luke have a daughter, Addison. And they both named Phoebe and her fiance Marcus as Addison's guardians in the event that they both died. It will be a long road for the couple, learning to raise a two year old who doesn't understand what's happening. And how do you raise someone else's baby when you're only nineteen, and your life is just getting started?