This play has about five acts and around seven scenes in each act. In the beginning Macbeth was a Thane of Glamis. He met three witches that told him "you will become king." He didn't believe this, but the witches also told him he would become the Thane of Cawdor, which did happen. Then Macbeth began to believe them (a little). Next he thought "Being King wouldn't be too bad," so he and his wife, Lady Macbeth, planned to kill King Duncan. They did and put the blame on the King's gaurds. That plan went successfully.
The King had two sons, Malcolm and Donalbain. They fled after they heard of their father's death. Once Macbeth became King, he thought he had no worries. But Macbeth knows that Banquo knew of his plan to kill Duncan, so Macbeth hired three murders to kill Banquo and his son Fleance. They killed Banquo, but Fleance got away. After Macbeth heard of the success of the murder he became insane.
Macbeth went to the witches to see what he had to fear. The witches showed him some apparitions, which told him what to fear. There were three of them. The first one said to look out for the Thane of Fife, which was Macduff. The second apparition said that none born of a woman would kill him. Last the thrid one said to not worry until Great Birnam (the forest) comes to your castle. Macbeth thought he had it made from what the apparitions said.
Just to be safe, Macbeth tried to find ways to get Macduff to come back so he could kill him. Macbeth had Macduff's family murdered. Once Macduff heard of this, he wanted Macbeth's head. So Macduff went to his friend Malcolm, who was in England. They talked and came up with a plan to get Macbeth. Macduff said "I want to kill Macbeth." Malcolm and Macduff got an army ready and left for Macbeth. Macbeth heard of the plan Malcolm and Macduff made and was planning to hold them out. Well once Malcolm's army got to the castle they planned to cut branches off trees from Birnam forest and use it as cover. Macbeth's army started leaving him and going to Malcolm's side.
Macduff got inside and was on the look for Macbeth. Once he found him they began to fight. Macbeth said "You can't defeat me. None born of a woman can harm me." But Macduff wasn't born of a woman, he was cut out of her womb early. So Macbeth knew he was doomed. After the fight Macduff cut off his head, and the castle was back in the right hands. Malcolm became the new king.