"Hell" is the place where a person is sent to who committed violent crimes when they were alive. Shinigami are forbidden to go there. One day, prisoners revolt and make their escape to Karakura—the real world—where Ichigo and his friends live in. Ichigo and his friends are defeated one after the other by prisoners with overwhelming power. A mysterious man appears who comes to their rescue. With Kokutou leading the way, Ichigo, Rukia, Uryuu, and Renji marche into Hell to save the world. Note: Episode 299 of Bleach serves as a prologue to this movie. (Source: AniDB, edited)

After a mysterious pair attack Rukia Kuchiki and erase her memories while she is in Seireitei, Ichigo Kurosaki, a substitute Soul Reaper, briefly forgets Rukia, until he is reminded of her by Kon, an Underpod Mod-Soul. Confused, he seeks his town's candy-shop owner, Kisuke Urahara, who opens the pathway to Seireitei for them. Ichigo is then shocked to find that his allies in Seireitei, the Shinigami of the Soul Society, have forgotten him. Filled with action, Kimi no Na wo Yobu follows Ichigo and Kon as they fight against their former comrades while searching for the missing Rukia and discovering her assailants before they strike again. [Written by MAL Rewrite]