The Three Act Structure is a narrative framework commonly used in storytelling, particularly in film and literature. It divides a story into three distinct parts: the setup, the confrontation, and the resolution. In the first act, characters and settings are introduced, establishing the main conflict. The second act focuses on the development of the conflict, where characters face challenges and obstacles. Finally, the third act resolves the conflict, leading to a conclusion that ties up loose ends and reveals the characters' growth or change. This structure helps create a cohesive and engaging narrative.