Flatland is a world that exists entirely on a two-dimensional plane. All different kinds of shapes live, work and play in this world. The story follows Arthur Square and his curious granddaughter Hex. When a mysterious visitor arrives from Spaceland, Arthur and Hex must come to terms with the truth of the third dimension, risking dire consequences from the evil Circles that have rules Flatland for thousands of years.

Based on the novel Flatland: A Romance of Many Dimensions by Edwin A. Abbott. Special features: cast interviews ; interview with Professor Thomas Banchoff discussing the 4th Spatial Dimension ; complete text of the novel in DVD-ROM mode.