When her sister dies, heartbroken Lizzie Breen is literally left holding the baby, or in this case her four year old nephew Nate. Amongst her sisters things she finds the contact details for the boy's father, and contacts him. But she doesn't want to lose her nephew, especially not to cynical and angry Oscar. She'll fight to keep things as they are, do whatever it takes. But Oscar Wicker has different ideas, he wants his son more than anything, but annoying Lizzie starts to grow on him too... He's unreliable, selfish, but he wants her and Nate to count on him.