Hellsing Ultimate follows the manga storyline more closely than the anime series. The first episode was released in Japan on February 10, 2006, and as of December 26, 2012 all ten episodes have been released. The first episode was released in North America on December 5, 2006, and as of December, 2012 all ten English subtitled episodes have been released. The series began airing on Adult Swim's Toonami block on September 13, 2014 at 3:00 AM. The final 2 episodes of the series were aired on Toonami December 6, 2014.