All hail, Macbeth, hail to thee, Thane of Glamis.All hail, Macbeth, hail to thee thane of Cawdor. All hail Macbeth,  thou shalt be king here after.
The ambitious wife 
An unexpected event
I am the king now !!
Macbeth and his friend Banquo meet with three witches and they made made a prophecy about each one of them. The witches told Macbeth that he will be the future king and they told Banquo that His sons will be the next in line.
The killer
Lady Macbeth tried to convince Macbeth about killing the king in order to take  the throne. At first Macbeth didn't want to then later she change his mind.
The master plan
Macbeth killed Duncan while he was was as sleep. After he killed Duncan he took the throne by becoming the king. 
Revenge
Macbeth send the murderers to kill Banquo because he feels like Banquo might be a threat to him and his throne. He also tried to killed Macduff but he got escaped. 
Macbeth meet up with the witches to learn about his future they told him that no man born of a woman can harm him  that's why he was so confident to go in battle. After Everything Macbeth has done to the people in Scotland, cheated in order to be king, killing innocent people, MacDuff and Malcolm came together and decided  that they would get revenge on Macbeth
No man born in a woman can harm you !
Macbeth deserve to die (enough is enough)
Early in the play Macbeth sent the murderers to avenge Macduff and his family just to keep  his throne. At the end of the chapter Macbeth got defeated by Macduff during the battle and Macduff ended up killing him.