2 years after the final battle in Furuhoshi, the time arrives for Hikaru Raido to have another fateful encounter with the mysterious warrior, Ultraman Victory, and a new invading force from space. With the help of the special task force UPG, Hikaru unites with Ginga again to forge a path to the future, and a titanic tale of battles begins to unfold!

Hikaru fuses with Ginga again to help UPG and the mysterious Ultraman Victory face the forces that are threatening them. At the last second EX Red King's rampage is stopped, Ginga extends a hand to Victory, only for the other Ultraman to attack! Victory's special attack, the Ultlance, is unleashed against Ginga! Is he an ally or an enemy!?

The invasion of the Alien Chibull, Exceller, grows more intense. The Alien Guts, Vorst, launches an attack with a group of Imperializer space robots! As people flee from the carnage, Hikaru Ultlives with Ginga and shields the populace with his body! Badly wounded, he hears a familiar voice... the voice of Ultraman Taro, who grants a new power to Ginga!

With the power granted to him by Ultraman Taro, Ginga powers up into Ginga Strium. While glad to see Taro again, Hikaru begins to question his newfound strength, feeling the stress of his duty to protect Victorium. And then, a monster appears. Watching his allies fight desperately to help him, something in Sho's soul awakens!

The Alien Chibull, Exceller, unleashes the super monster Vakishim and the Dimensional Superhuman Yapool! Yapool possesses UPG Officer Gouki to infiltrate the base, in order to trap Hikaru/Ginga inside a dimensional barrier! His next target is Sho/Victory. As Vakishim and Victory engage in an intense battle, can Gouki resist Yapool's possession for long enough!?

Sho/Victory are being followed by a mysgterious woman named Hiyori, who has some kind of grudge against his race, the Victorians. As Sho is attacked without knowing the reason why, his transformation item, the Ultlance is taken! Hiyori 'Lives with Gomora and goes on a rampage. Ginga tries to stop her, but Shepardon tries to protect Gomora. And then the ancient monster, Fire Golza appears.