Ireland. It details his flight from home after a duel, his service in the Seven Years' War for both the British and Prussian armies, and his eventual transition into a professional gambler and opportunist.

After successfully marrying the wealthy Countess of Lyndon, Barry’s life takes a dark turn. This act covers his domestic failures, his inability to manage the Lyndon estate, the death of his beloved son Bryan, and his ultimate exile and financial ruin.

By telling the audience what will happen (e.g., "Misfortunes and Disasters"), Kubrick shifts the focus from what happens to how it happens, emphasizing a sense of inevitable destiny.