What is a 'story arc'?
A story arc is basically the beginning, the middle, and the end of any particular storyline. If you have different contestants on a reality show, each of them would probably have their own story arc; or a team would have their story arc. An example of a story arc is: they started out as the naive couple from the farm who didn't know anything about the big city. They had their comeuppance when they realized people in the big city couldn't be trusted and then they got smart and figured out how to outsmart the city people themselves. End of story.