It is revealed that Logan´s reason for treating his people so harshly is to raise funds for Albion´s military to defend against the impending Crawler invasion. When attempting to gain the support of Kalin, the hero learns that a creature called the Crawler and the forces of the Darkness, which have already devastated Aurora, intend to exterminate all life in the Kingdom of Albion. During the course of the story the player will be asked by allies for a promise, usually involving righting the wrongs done to them by King Logan´s rule once the player has gained control over the kingdom. The allies they gain include Sabine, the leader of the "Dwellers", a nomadic community that lives in the mountains Major Swift and Ben Finn, soldiers from the Royal Army in command of a remote fort Page, the leader of the "Bowerstone Resistance" and Kalin, the leader of Aurora, a desert land across the ocean. The player then, with the guidance of Theresa, the enigmatic Seeress of the Spire and distant and ancient relative of the Hero player, starts to gather allies to aid in a revolution against the tyrannical King Logan. Following the decision, the player escapes Logan´s castle along with their mentor, Sir Walter Beck, and their butler, Jasper. The player is tasked with deciding whether the group of protesters are executed, or whether the player´s love-interest is executed instead. After the player character intervenes, Logan presents the player with the first of the game´s numerous moral choices. The player begins the game investigating rumours that Logan had a citizen of Albion executed, causing a group of citizens to protest.
Some NPCs allude to how Logan has "changed" in the last four years of his rule, becoming excessively tyrannical.
The Hero of Bowerstone (the player character of Fable II) and ruler of Albion has died and left the Kingdom to their eldest son, Logan, the player´s older brother. The game is set on the fictional continent of Albion, which is entering the age of industry. Fable III is set 50 years after the events of Fable II.