Over the course of his life, Keith Aldrich was a child of the Depression; an aspiring Hollywood actor; a self-styled Beat writer, a member of the New York literati, and then a hippie. Then in the 80's, he became a born-again Christian.

Some improvements in their missionary work.

Building everything that comprises modern life—constructing cities and suburbs both—means trampling nature. And that bothers some people.

We hear the history of why these drug laws were enacted from a firsthand witness. Eric Sterling was the lawyer in charge of drug laws for the House Judiciary Committee during the 1980s, when mandatory minimums were put in place.

Barbara's story continues, as she hears some terrible news about her son.

Writer Meghan Daum goes to DeSmet, South Dakota, where Laura Ingalls Wilder lived and where many of the books she wrote in the Little House on the Prairie series are set. It turns out to be remarkably similar to what Meghan had pictured before she went: The people seem like they are genuinely trying to hold on to the values Laura Ingalls Wilder writes about in her books.

Genevieve Jurgensen and her husband Laurent lost their two daughters, Elise and Mathilde, at the ages of 4 and 7. Actress Felicity Jones reads from Jurgensen's book, The Disappearance: A Memoir of Loss, in which Jurgensen tries to explain her children's lives and their deaths to a friend through a series of letters.

Some criminals do not see themselves as basically good people getting away with something bad. Some people do not believe God is on their side when they commit their crimes.

Photographer Joel Meyerowitz decided to go on a last big trip with his father Hy, who has Alzheimer's. Joel also brought his own son.

Barbara Clinkscales grew up in Chicago's public housing projects, had her first child when she was 15, and is now—over two decades later—struggling to get her teenage son to finish his senior year of high school. Barbara is a working mom, with a network of close friends who look out for her.