In the Beginning features episodes devoted to most of the major Bible stories of the Old Testament, including the stories of the Creation, Cain and Abel, Noah's Ark, Abraham and Isaac, Joseph, Moses, David, and Solomon, with the final episode featuring the birth of Jesus Christ. As with the second Superbook series, some stories were stretched out over several episodes. Unlike Superbook and The Flying House, however, no contemporary characters from modern times were inserted into the stories, save for the series mascot and viewpoint character, Roco the fox.