Gintama: The Final Chapter - Be Forever Yorozuya is an anime film that premiered in summer 2013, produced by Sunrise.

About the production: the story comes from a manga, the film runs about 110 minutes and its current status is "finished".

Its main genres are action, comedy and sci-fi, with themes such as Time Manipulation, Male Protagonist, Swordplay and Found Family.

On AniList, Gintama: The Final Chapter - Be Forever Yorozuya has an average score of 87%, one of the highest scores on the site, and appears on 56,304 users' lists.

The franchise continues in or follows from: Gintama° and Gintama': Enchousen.

When Gintoki apprehends a movie pirate at a premiere, he checks the camera's footage and finds himself transported to a bleak, post-apocalyptic version of Edo, where a mysterious epidemic called the "White Plague" has ravished the world's population. It turns out that the movie pirate wasn't a pirate after all—it was an android time machine, and Gintoki has been hurtled five years into the future! Shinpachi and Kagura, his Yorozuya cohorts, have had a falling out and are now battle-hardened solo vigilantes and he himself has been missing for years, disappearing without a trace after scribbling a strange message in his journal. Setting out in the disguise given to him by the android time machine, Gintoki haphazardly reunites the Yorozuya team to investigate the White Plague, and soon discovers that the key to saving the future lies in the darkness of his own past. Determined to confront a powerful foe, he makes an important discovery—with a ragtag band of friends and allies at his side, he doesn't have to fight alone. (Source: MAL Rewrite)

Official synopsis from AniList.