Chigusa's negative feelings turned her into the monster Ragon. Ultraman Ginga persuaded her change back. No sooner, after he set things right, the giant is attacked by a giant robot.
Hikaru fulfills Tomoya's dream of fighting Ultraman Ginga. When Tiga Dark and Alien Valky attack, Ginga and the robot, now Jean-Nine, join forces to defeat them.
Alien Icarus merged with the souls of 7 monsters, Hikaru his friends were looking for. After battling the Monster Tyrant, an ultra dark giant is sent to challenge Ultraman Ginga.
Other people are also trapped in the time space distortion around the school. When the Ginga Spark goes missing, Misuzu. wishing to help Hikaru, is allowed to ultlive into Red King to battle the next monster.
After the dark giant Lugiel was fully resurrected, he planned on absorbing all the hopelessness of the humans on Earth. It's up to Ultraman Ginga to stop him.