The document discusses Todorov's narrative structure model and how it applies to TV crime dramas. Todorov's model includes 5 stages: 1) initial equilibrium, 2) a disruption such as a crime, 3) a character recognizes the disruption, 4) the character works to resolve the disruption by solving the crime, and 5) the situation is resolved and equilibrium is restored. The document instructs the reader to analyze the narrative structure of a crime drama episode based on Todorov's model and identify the enigma codes and action codes that drive the plot.