This chapter explores some of the ways narrative content is understood from a theoretical perspective and how it is sourced and shaped in practice in the design of narrative environments. It examines how story content is defined in narratology as event, character and setting and explores how these three core story elements play out in narrative environments. Narratologists argue that the word 'narrative' is used to refer to both story and telling. Moving on to the role of characters in narrative environments, as in literature, theatre, film and television, human characters play an important role in the content of stories. American scholar of mythology and comparative religion, Joseph Campbell believed all mythic narratives were variations of a single story or monomyth. In his book The Hero with a Thousand Faces, he maps the movement of the hero in 17 stages and 3 acts.