Mobile Suit Gundam 00 is a Japanese anime series that first aired in 2007. It is part of the larger Gundam franchise and is set in the future, specifically in the year 2307 AD. The story revolves around a group called Celestial Being, which aims to eliminate war through the use of advanced mecha known as Gundams. The series explores themes of conflict, peace, and the impact of technology on society. It features a diverse cast of characters, including Setsuna F. Seiei, the main protagonist, who pilots one of the Gundams. The show is known for its complex narrative and moral dilemmas.