Antigone tells Ismene about Creon's decree to not bury their brother Polyneices and if anyone did bury him, they would be killed. She then explains her plan to go and bury him and after Ismene decides not to help her, due to the repercussions, Antigone says that she didn't want her help anyways, that she is doing what is right and will gladly accept the consequences, and that she will soon hate her.
"Ismene, dear sister, you would think that we had already suffered enough for the curse on Oedipus" (Sophocles Prologue.1-3)
The Chorus and Choragos describe the battle between Polyneices and Eteocles. Polyneices was screaming insults, Thebes fighting back, and the sounds and sights of death everywhere. They then describe the joy of Thebes winning the battle.
Creon first explains how he gained his power and what he expects from the chorus. He then explains how Eteocles is a hero and will be buried with full military honors whereas Polyneices is a traitor and that he should not be buried and that if anybody touched the body they would be punished. A sentry arrives and tells Creon that someone touched the body. Creon then tells the sentry to find the person responsible or else he'd be killed.
"Your figures of speech may entertain you now; but unless you bring me the man, you will get little profit from then in the end." (Sophocles I.271-3)
Men; their fate could be good or bad. Their cities and people stand tall when there are laws but once the law is broken what will happen?
The sentry arrived with Antigone and explains that they caught her trying to bury the body. Antigone confesses and Creon tries to make sense of why she did it and precedes to explain that she's stupid like her father, Oedipus. Antigone tells him to kill her already and that he is the one who is wrong. Ismene arrives, in tears, and tries to take the punishment (she was ashamed she did not help). Ismene and Antigone fight because Antigone thinks that she should not be considered heroic.
"Your edict, King, was strong, but all your strength is weakness itself against the immortal unrecorded laws of God." (Sophocles II.359-61)
A man who has never been a victim of God's vengeance is fortunate; for once God unleashes his wrath, there is no going back. Oedipus' children generation after generation fall victim to his wrath and there is no hope of stopping it.