Gintama: The Very Final (2021) on Netflix

Plot summary

The Tendoushuu army has seized the Terminal, and the mothership above it pours Altana into the child Shouyou. Gintoki, Takasugi and Katsura cut through the enemy ranks, then divide their forces, with Katsura guarding the heart that Shouyou's revival depends on. Below, the Shinsengumi, the Hyakka and the Oniwabanshu join the residents of Kabuki District to hold off the Tendoushuu, and Matsudaira shoots down ships outside. Gintoki rejoins Kagura and Shinpachi, and the three push toward the top of the Terminal. Takasugi boards the Tendoushuu's ship. Utsuro's power grows, and former enemies have joined the fight to carry out their teacher's wishes.