"Chapter 20" is the twentieth episode of the Star Wars: Clone Wars animated television series, the tenth and final episode in Season Two, and the twentieth and final episode in Volume One. Directed by Genndy Tartakovsky, the episode originally aired on Cartoon Network on April 8, 2004. The episode occurs midway through the total time length of the series. It shows the end of the Battle of Muunilinst, which started with the debut of the series, and introduces General Grievous, who will dominate the rest of the storyline.