The Changing World (変わる世界, Kawaru Sekai) is the third episode of Mobile Suit Gundam 00.
Union ace pilot Graham Aker learns that he and Billy Katagiri have been reassigned to a new anti-Gundam investigative taskforce. News reporter Kinue Crossroad discovers Celestial Being's spokesman is the legendary inventor Aeolia Schenberg... a man who died more than 200 years earlier. Setsuna is sent to eliminate the remaining Human Reform League forces on the island of Ceylon. Here he encounters another formidable new opponent: veteran officer Sergei Smirnov, the dreaded Wild Bear of Russia.