Ultraman Mebius is a Japanese television series produced by Tsuburaya Productions and Chubu-Nippon Broadcasting. It is the 17th TV series and 40th anniversary production in the Ultra Series, which first began in 1966. It premiered on the Tokyo Broadcasting System on April 8, 2006. Unlike the two prior entries, Ultraman Nexus and Ultraman Max, Mebius was moved from Saturday mornings to Saturday evenings at 05:30. "Mebius" is the Japanese approximation of Möbius; the Möbius strip is a recurring motif in the series and the show going to air in Korea in April 2012. The series opens with the introduction of the rookie Ultraman Mebius, who is sent to Earth by the Father of Ultra. The series is set 40 years after the shows of Ultraman, and makes many references from Ultra Q through to Ultraman 80.

Serving as the sequel of 2006 Ultra Series Ultraman Mebius, taking place sometime after the final episode.

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.

The first of a 2-part sequel to the 2006 TV Series Ultraman Mebius. After the death of Alien Empera, the sentient being known as Armored Darkness is activated to carry out the Emperor's Plan B. To make its presence known, Armored Darkness revives the monsters Saramandora, Roberuga, Mukadender, and Cherubim.

While the Subordinate weeped, Mirai informed him that Ryu was alive, saved by the power of Ultraman King. He revealed that after Alien Emperor's defeat, Armored Darkness had been known for some time and Ultraman Hikari was sent by Ultraman King to destroy it before it could reach Earth, but the Armor's strength overpowered him and possessed him.