Gintama Season 3 Episode 6: Arriving Late to a Reunion Makes It Hard to Enter
Episode 6 of 51 of Gintama Season 3, aired May 12, 2015, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Gin is tricked into turning up to a reunion party with Katsura and Sakamoto. The two are unhappy with their lack of screen time and are determined to start a flashback arc, but they then get sidetracked trying to figure out the identity of a supposed fifth hero who supported them from the sidelines.