Mobile Suit Gundam 00 is an anime television series, the 11th incarnation of Sunrise studio's long-running Gundam franchise comprising two seasons. The series is set on a futuristic Earth and is centered on the exploits of the fictional paramilitary organization Celestial Being and its efforts to rid the world of war and conflict with a series of unique and extremely advanced mechas mobile suits known as "Gundams". It is directed by Seiji Mizushima and written by Yōsuke Kuroda, and features character designs by Yun Kōga. The 25-episode season was officially announced by Sunrise during a 15-second trailer on June 2, 2007. The series aired on the Mainichi Broadcasting System and Tokyo Broadcasting System from October 5, 2007 to March 29, 2008. The second season began on October 5, 2008 and concluded on March 29, 2009. A movie sequel was released on DVD and Blu-ray on December 25, 2010 in Japan. Mobile Suit Gundam 00 is the first Gundam series to be animated in widescreen and in high-definition.