High schoolers Mitsuha and Taki are complete strangers living separate lives. But one night, they suddenly switch places. Mitsuha wakes up in Taki’s body, and he in hers. This bizarre occurrence continues to happen randomly, and the two must adjust their lives around each other.

In Fujisawa, Sakuta Azusagawa is in his second year of high school. Blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted by the appearance of his first crush, Shoko Makinohara.

Class 1-A visits Nabu Island where they finally get to do some real hero work. The place is so peaceful that it's more like a vacation … until they're attacked by a villain with an unfathomable Quirk! His power is eerily familiar, and it looks like Shigaraki had a hand in the plan. But with All Might retired and citizens' lives on the line, there's no time for questions. Deku and his friends are the next generation of heroes, and they're the island's only hope.

All Might and Deku accept an invitation to go abroad to a floating and mobile manmade city, called 'I-Island', where they research quirks as well as hero supplemental items at the special 'I-Expo' convention that is currently being held on the island. During that time, suddenly, despite an iron wall of security surrounding the island, the system is breached by a villain, and the only ones able to stop him are the students of Class 1-A.

The story focuses on the exploits of rivals Reinhard von Lohengramm and Yang Wen-li, as they rise to power and fame in the Galactic Empire and the Free Planets Alliance, respectively.

Shoyo Hinata joins Karasuno High's volleyball club to be like his idol, a former Karasuno player known as the "Little Giant." But, Hinata soon finds that he must team up with his middle school nemesis, Tobio Kageyama. Their clashing styles turn into a surprising weapon, but can they beat their rival Nekoma High in the highly anticipated "Dumpster Battle," the long awaited ultimate showdown between two opposing underdog teams?

Warriors called "Saints" are the champions of hope who have always appeared since the Age of Myth whenever evil threatens the world. In this present day story, many years since the long fought "Holy War" we find Saori Kido, a girl troubled by her mysterious powers. She is saved by a boy, Seiya "Bronze Saint" from a sudden attack by an assassin, through the accident Saori realizes her destiny and mission and decides to go to "Sanctuary" with Seiya and his company of Bronze Saints. In Sanctuary they confront "Pope" and wage a desperate battle against the greatest Saints, the "Gold Saints".

Shouyou Hinata, after losing to Kitagawa Daiichi Junior High's setter Tobio Kageyama in his first official volleyball match, transfers to Karasuno High, intent on finally having a proper volleyball team and getting his revenge on Kageyama. Upon arrival at Karasuno, however, Hinata finds out Kageyama has also gone to Karasuno. Initially at odds with each other, the two form an oddball combination and fight together with the other members of the volleyball club. Karasuno reunites with a former rival school, Nekoma High, in a practice match and reignites their school rivalry.

Recap film focusing primarily on the match against Shiratorizawa from the third season.

Recap film focusing primarily on the match against Aoba Jouhsai from the second season.

Karasuno High enters the Inter-High Volleyball Tournament and immediately proves they're "flightless crows" no more. After their first match, Karasuno dukes it out against Date Tech High and their famous Iron Wall, which shut down every spike of Karasuno's ace, Asahi, during a previous match. Karasuno, however, breaks through the Iron Wall this time and proceeds to the Round of 16. The newly rejuvenated Karasuno fights Aoba Johsai High and seeks to have the same outcome as their first practice match.