In the beginning of the movie, 20 years ago, on the moon, the 4 Ultra brothers, Ultraman, Seven, Jack, and Ace were fighting a deadly foe known as Yapool, a monster that was several times their size. As they fought, Yapool had a clear advantage and used his several claws to grasp the brothers, although, they managed to clear from the claws through there powers and used a combined Specium Ray to no avail. The monster then flies off to Earth to dodge the attack and the brothers follow. The brothers were barely able to defeat Yapool but the monster still needed to be sealed. However, to seal Yapool away they were forced to give up the ability to transform, and took up jobs to be in the area of Kobe in case the monster ever returned.
五十嵐隼士
as Mirai Hibino / Ultraman Mebius
黒部進
as Shin Hayata / Ultraman
森次晃嗣
as Dan Moroboshi / Ultra Seven
団時朗
as Hideki Gô / Ultraman Jack
高峰圭二
as Hokuto Seiji / Ultraman Ace
Ouga Tanaka
as Takato Jinguji
いとうあいこ
as Aya Jinguji
仁科克基
as Ryu Aihara
斉川あい
as Marina Kazama
渡辺大輔
as George Ikaruga
平田弥里
as Konomi Amagai
内野謙太
as Teppei Kuze
