Ryu Manatsu

When a giant monster attacks Japan, the country's only hope is a research assistant who's become monstrously big himself. But there might be a price.

Yapool has returned after being injured in Ultraman Ginga S. He masterminds several attacks on Shou's homeworld, the Victorian kingdom in an attempt to get to the Victorium Core. Ultraman Hikari appears and grants Shou the ability to transform into Knight Mode with the Knight Timbre. Now free from their Spark Doll forms, some of the Showa Ultras join Victory in his fight.

The story is set in a world where a tokusatsu hero TV series "Outer Man" has gained national popularity for 50 years (just like the Ultraman series). One day, a giant alien looking exactly like Outer Man appears in Japan. The truth is soon revealed that, unlike the story in the TV series, Outer Man is an evil alien who has been trying to brainwash Japanese people to invade the earth. The actors who played the hero in the TV series decide to fight against the real Outer Man by transforming into the villain alien in the series, Sylvie Seijin.

사악한 외계인들에게 정복 당한 지구! 그곳에 남아 있는 최후의 인류! 우주 공간을 순찰하던 ‘울트라맨 다이나’는 생존을 위해 끈질기게 투쟁하고 있는 인류를 발견하고 그들을 지키기 위해 ‘울트라맨 코스모스’, ‘울트라맨 제로’와 함께 지구로 떠난다. 하지만 지구를 장악한 사상초유의 악당 ‘하이퍼 젯톤’ 앞에서 모두가 굴복하고 마는데… 인류를 구하기 위한 최후의 수단! 세 영웅은 전설 속의 히어로 ‘울트라맨 사가’로 합체를 시도한다. 과연 그들은 ‘하이퍼 젯톤’을 물리치고 지구를 구할 수 있을까?

Zero finds himself trapped within a universal gap and faced against an impostor Ace. Following the battle, Darklops Zero was restrained once more by Herodia, remembering a figure named "Kaiser Belial" before deactivating. Rei was restrained after his failed attempt to intrude the alien base but was rescued by none other than his alternate self. Unlike the prime Rei, alternate Reimon was never able to control his powers, forced into the state of Reionic Burst until the original Rei punched Reimon, thus deactivating its Reionic Burst mode. Rei revealed that he lost his Rayblood instinct after Hyuga threw Seven's Eye Slugger, creating a scar on his chest which symbolizes the former's friendship with ZAP SPACY members. While searching for Rei, Hyuga instead finds his Neo Battle Nizer and an entrance to the alien base made by Litra. Although the fake Ace was destroyed, Zero try to find an escaped but was halted by Seven and Ultraman impostors.

Zero sits on a cliff while he watches a strange tower firing lightning bolts, and then rises to face against what it seemed to be members Ultra Brothers, Ultraman, Robot Zoffy, Ultraman Jack and Ultraman Ace. After incapacitating the ZAP SPACY's Space Pendragon, Ultraseven joined the group as they face against Zero.