some complications: Ismene refuses to help Antigone, Creon publicly forbids Polyneices’ burial, the Chorus agrees to respect Creon’s wishes, the guard informs Creon that his command has been disobeyed, Creon sends him in search of the perpetrator, the guard captures Antigone, Creon orders her execution. Haemon argues with Creon, Creon ignores him and buries Antigone alive, Tyresias warns Creon.
Here I think is the moment of crisis from which there is no turning back. If Creon listens to Tyresias, he might still be able to prevent anyone from dying and undo the offense he has committed against the gods. Instead, Creon ignores and insults the prophet, leading to Tyresias’ dooming prophesy. Despite Creon’s reluctant change of heart, he cannot act quickly enough to prevent the ensuing suicides of Antigone, Haemon, and the queen, leading to Creon’s ultimate downfall.