whats the plot sturcture?

The way in which the author plans (structures) a story:

http://en.wikipedia.org/wiki/Plot_(narrative)#Freytag_on_Plot
Read carefully.

There are a few different models. A common one is that there is an introduction or exposition, an event, rising action, a turning point, a climax, and a conclusion that resolves the problem.

A good description to help you out is here:

http://english.learnhub.com/lesson/4579-plot-structure

The plot structure is the overall organization of a story, novel, or screenplay. It refers to the way the events of the story are arranged and presented to the audience. There are different models and theories about plot structure, but one commonly used framework is the three-act structure. Here's an explanation of the three-act structure:

1. Act 1: Introduction and Setup
- The first act introduces the main characters, the setting, and the initial conflict or problem.
- It establishes the normal life of the protagonist and introduces the main story question or goal.
- Act 1 also sets up the primary relationships and provides important background information.

2. Act 2: Confrontation and Rising Action
- This is the longest section of the story and comprises the middle part of the narrative.
- Act 2 is where the majority of challenges, obstacles, and conflicts occur.
- The tension and stakes are heightened as the protagonist strives to achieve their goal or resolve the central problem.
- Rising action refers to the series of events that build up to the story's climax.

3. Act 3: Resolution and Denouement
- The final act begins with the climax, which is the turning point or most intense moment of the story.
- After the climax, the falling action follows, showing the consequences of the climax and leading towards the resolution.
- The resolution is where the main conflict is resolved, and loose ends are tied up.
- The denouement is the final part of the plot structure, giving closure to the story and providing a sense of finality.

Understanding the plot structure helps both writers and audience members analyze and appreciate the flow of the story. It provides a framework for building tension, developing characters, and creating engaging narratives.