Growing up on their hardscrabble farm in rural Kentucky, fifteen-year-old Albertina "Bertie" Winslow has learned a lot from her mama, Polly. She knows how to lance a boil, make a pie crust, butcher a pig, and tend to every chore that needs doing. What she doesn't know, but is forced to reckon with all too soon, is how to look after children as a mother should .