Kento and Dani face the Akron in the second battle where triumphants leave but a marching robot army based on Dr. Earl ready for revenge. The professor tells the boys about his exile of space, when he left the planet Helios invaded by Akron to take refuge in the Earth. He came to our planet in 1945 along with the Harlin prince whose traces are lost together with the robot lion made by the professor to face the enemy in the future.
In this episode, we meet a friend of Cratus, “Gascon, Tiger of the Galaxy”. Gascon is one of the most feared and courageous warriors in the galaxy, according to Doctor Earl. He is also about as crude and foul-mouthed as Kento. But anyway, he’s neutral in the war between Daltanious and the Akron Empire. Which side shall he go to in this war?
This is the episode where Daltanious finally gets a major upgrade after Zaar sends its newest type of monster on Earth… a twinborg! Unfortunately, Unitogeros, the first of the twinborgs, prove to be too powerful for Daltanious… going as far as to neutralize the Flame Sword! So what does Doctor Earl and company do?
Kento is so excited that he has his father back in his life again after being absent for twelve years. And as for the Empire of Zaar, they demonstrate their cruelty even to their own kind by forcing their own men to kill Hayato Tat… err, I mean Prince Arlin… or their own families would be slaughtered.
Prince Arlin was mortally wounded by a sneak attack from the late General Mitsuka. Worse yet, Kloppen was mortally wounded as well by General Kabuto. After overhearing Kento shedding tears for this one man responsible for murdering his mother and sister (and countless millions on Earth), Kloppen is moved enough to make the ultimate sacrifice so that Kento’s father has a chance at survival.
Despite Prince Arlin has yet to regain consciousness from receiving Kloppen’s organs, Arlin is brought with Kento and company so that he would be there when the war goes on. After vanquishing Supreme General Neshia, is a regular war ensemble! As a fight with Ormen on an unnamed twinborg unwinds, the Emperor of Zaar finally reveals his face!