Adam proposes to Mary, and they plan a wedding in Winoka. Charles and Caroline cannot afford to send the whole family to the event, so they are forced to make the trip by themselves. All seems to be going great until Mary, who fears that she and her Adam can never be proper parents, calls the whole thing off.
Adam and Mary are expecting their first child. Mary, who knows that Adam has a strained relationship with his father, secretly writes a letter to the man. Thomas Kendall arrives in Walnut Grove for a visit and desires to be closer to his son and grandchild. Meanwhile, Albert Ingalls is smitten with Miss Bennett, a beautiful young woman who is substituting for Mrs. Garvey at school.
