The Campaign mode of Age of Empires III in both the base game and The WarChiefs follow the story of the Black family, which starts with Morgan Black, a scottish knight from the Knights of St. John, who's organizing the last stand of Malta against the Ottoman Empire. Soon he'll be forced to sail to the Americas in search of both his enemy Sahin the Falcon, as well as the fountain of Youth. As generations come and go, the Black Family becomes involved in several historical events such as the Seven Years War and the Fight for Independence.
The Expansion Pack The Asian Dynasties, meanwhile, deals with three different stories: the unification of Japan under Ieyasu Tokugawa, the accidental discovery of the Americas by the Imperial Chinese Fleet, and the Sepoy Rebellion against the British East India Company.
Finally, Definitive Edition introduced Historical Battles, akin to II's "Battles of the Conquerors" and "Battles of the Forgotten" (later unified in that game's Definitive Edition under the banner "Historical Battles") where the player takes control of different factions in different historical confrontations.
