Call thee Thane of Cawdor; in which addition, hail, most worthy thane! For it is thine.
A limbeck only: when in swinish sleep their drenched natures lie as in death, what cannot you and I preform upon th'unguarded Duncan.
Macbeth and Banquo come across the three witches. The three witches tell Macbeth that he will be king and that Banquo won't be, but his sons will be.
Macbeth has already gotten the name of Glamis and Thane of Cawdor, which goes to show that the predictions have been true so far. That meant Macbeth would have to actually commit a crime and kill Duncan.
"I see thee still; and on thy blade and dudgeon gouts of blood"
Lady Macbeth plans to kill Duncan and tells Macbeth that he won't be a man unless he kills Duncan. Macbeth then feels obligated to kill him due to what Lady Macbeth has said.
There's but one down; the son is fled.
Duncan is killed by Macbeth in the middle of his sleep. People wake to find him and yell in horror.
O horror, horror, horror! Tongue nor heart cannot conceive nor name thee.
Macbeth had the daggers in his hand and he was overwhelmed with what happened. Lady Macbeth took the daggers and told him to bring it back to Duncans room to plant them back in teh room.
Macbeth has three assassins kill Banquo and Fleance, they kill Banquo, but Fleance gets away, causing Macbeth to sit uneasy on his throne.
"O, treachery! Fly, good Fleance, fly, fly, fly! Thou mayst revenge. O slave!"