Mold Spectre kidnaps Show/Ultraman Victory and Arisa (accidentally) to Ultraman X's world as Guar Army's prisoner due to being the murderer of his brother, Juda Spectre. Fortunately, thanks to Arisa, she managed to gain help in the form of UPG, as well as Ultraman X with Show escaped custody and reunited with her.
With Ginga assisting the Ultramen, Guar Army was forced to retreat and their space distortion was sealed. Hikaru, Ginga's host introduced himself to Xio and Daichi as well as telling the boy of several peaceful monsters which made his dream to befriend monsters even closer.
A short recap of episodes 8 to 14.
Gomess had been sighted to attack two times, first at the countryside and second at a city. Captain Shotaro Kamiki receives an invitation letter to his daughter's wedding but hesitates to come along due to Gomess' attack and the fact that he had been separated from his daughter for years.