Season 4 opens with Caroline ordering Laura to care for her dog, Jack, before going to town to greet a newcomer, Kezia Horn, who lives in a house without walls. Laura becomes frustrated at Jack and gives up trying to take the foxtails out of his ears. Mary, Laura, Nellie and Willie go to visit Kezia and find out what a unique yet kind person she is. When Laura arrives home, she finds old Jack dead in the barn.
