Gintama Episode 104: Important Things Are Hard to See
Episode 104 of 201 of Gintama, aired April 30, 2008, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Now fully free from the curse, Hijikata battles against Itou. Meanwhile, Gintoki is forced into a confrontation with none other than Bansai, right hand man to Takasugi.