Helaman chapter one introduces the reader to the sea change that is coming in a form of foreshadowing. The chapter begins with a story of the creation of the first band of Gadianton Robbers and then ends with fighting between Nephites and a Lamanite army commanded by a man named Coriantumr. As the Book of Mormon moves forward from here, Gadianton Robbers become more and more important to the point that their efforts lead to the near complete destruction of the Nephite state. This chapter is where it all begins.