What is the plot line of the story Macbeth?

The plot of William Shakespeare's Macbeth concerns the tragic downfall of the titular character as a result of his misguided ambition. In the play, Macbeth is given a prophecy that he will become king of Scotland. At the time of the prophecy, Macbeth is a hardened, loyal soldier. However, the prophecy causes him to begin to think of ways to become king. His own desires, coupled with the influences of his wife, cause him to murder Duncan, the current king of Scotland. Duncan's two sons, Malcolm and Donalbain, flee the country in fear, and Macbeth takes the throne. Once Macbeth becomes king, Scotland begins to fall into disarray. He is a terrible leader, and his paranoia causes him to fall apart and grow more fearful of almost everybody around him. After the murder of Duncan, Macbeth begins to grow more calloused toward murder, having his close friend Banquo killed, as well as the entire family of Macduff, as he begins to feel more and more afraid that his rule is being threatened. The play ends with those who love Scotland coming together under the combined might of Malcolm and Macduff, overthrowing Macbeth, and once again leading Scotland towards a bright, prosperous future.