Gintama Season 3 Episode 22: I`m the Mayo Guy, and He`s the Sweet Tooth
Episode 22 of 51 of Gintama Season 3, aired September 1, 2015, 25 minutes. Available with English subtitles and dub where released.
Episode summary
After getting hit by a truck, Gin and Hijikata mysteriously switch bodies. Now they must adapt to living each other's lives while trying to find a way to switch back.