A plot outline is a summary of the main events in a story. It is used to provide a structure for the narrative and to help the writer plan out the plot. The term 'plot outline' can also refer to a diagram or chart that visually outlines the plot of a story. The crossword solution for the term 'plot outline' is 'SCENARIO, ' which is defined as a particular situation or set of circumstances. A SCENARIO is often used to describe the setting and characters of a story, as well as the main plot points.