Saitama takes on the alien leader in epic battle as the S class heroes fight the alien warriors and destroy the spaceship.
Runtime: 24
Starts: Makoto Furukawa, Max Mittelman, Zach Aguilar, Kaito Ishikawa, Aoi Yûki, Kazuhiro Yamaji, Kenjirô Tsuda, Minami Takayama, Tesshô Genda, Yôji Ueda
Director: Shingo Natsume, Shin'ichirô Ushijima