Tramaroon, brother of Queen Massina, wishes if he could revenge Thunder Jet on her death. Kagan approaches him, offering her help to destroy T.J. Kagan knew T.J. is the greatest menace to her master, Gen-Yee. Kagan arranges the way Tramaroon can sneak into T.J.'s bedroom at night. Tramaroon poises his sword at T.J., but he is ashamed his cowardliness and challenges duel to T.J, knowing it is impossible to win. Defeated, Tramaroon decides to kill himself. T.J. tell him his people still need a good leader. Tramaroon agrees to make peace treaty with Kingdom Go-Jo.

The tremendous tension is till going on between Kingdom Go-Jo and Kingdom Ren. Simone thinks the permanent peace might be established if she could sets up a meeting of Thunder Jet and King Racko. So, she heads for Kingdom of Ren in the Southern Region. Her ship is shot down by the defense fleet. Although Simone escaped narrowly from the wrecked ship, she is captured as a spy. Simone's hope and eagerness of peace touches Racko's heart. He promises to have a provisional meeting of peace treaty and sends her back to Kingdom of Gojo.

Thunder Jet and King Racko is to have peace talk on a planet in the distant frontier. Kagan tricks Racko's fiancée to sabotage this talk. The tension of both Kingdoms' fleets becomes almost blown up. Simone rushes to meet the fiancée and dispels misunderstanding. But, the peace talk is canceled. Kagan rots away after her sorcery power is sucked by Gen-Yee. Gen-Yee swears to destroy T.J. on his own.

The galaxy is temporarily calm under three rulers; Thunder Jet of Kingdom Go-Jo, Racko of Kingdom Ren and Tramaroon of Kingdom of Ty which still exists but has been diminished after Racko's invasion. T.J. gets married with Simone. Reila loses T.J. and Sishin is hear-broken as he was in love with Simone secretly. Then, in Kingdom of Ren, rebellion of the generals insisting to destroy Thunder Jet breaks out. They are marionetted by Gene-Yee who plans to push Racko back into a war. Racko manages to subdue the rebellion, but, not the entire dispute. Simone worries the situation in Kingdom Ren.

Kingdom of Ren is in the crisis of falling down because of incessant rebellions. Cosishoo, the chief strategist of King Racko, advises King to set out for a war against Kingdom of Go-Jo so that the nation can be reunited under the sole interest. Racko has only to accept it. Hearing Ren's situation, Thunder Jet orders to prepare for a war. He decides to leave Vice Admiral Mokack and Sunluck to guard Simone. T.J. intends to settle down everything in this battle. To unite the entire galaxy—the decisive battle of great warriors is about to begin.

Cosishoo has a secret plan to destroy all the battleships of Kingdom go-Jo. Sishin, Thunder Jet's No.1 strategist, thinks to win this battle is to sink Racko's ship, "Imperial tiger." The ship appears in front of T.J.'s fleet as if it invite T.J.'s attack. Sishin is stunned when he find not one, but three "Imperial Tigers." T.J.'s fleet is losing battleships one after another under the hellish firing of three gigantic warships. Sishin uses all the remaining battleships as 'bates' and succeeds to smash two "Imperial Tigers." But, T.J. loses most of force in this battle.

King Racko decides to chase Thunder Jet's ship, "Kongo." One of his general, Teiho, requests an attack to Boot city, the capital of Planet Go-Jo. Racko asks to avoid unnecessary bloodshed, but Teiho washes Boot City with indiscriminate bombing. Teiho is controlled by Gen-Yee's sorcery. Mokack and then Sunluck are blown by bombing. Simone loses her life, too. T.J. has no idea what happened in his capital city.

Narrowly getting out of the city on fire, Friar Munk tells the death of Simone and others. Thunder Jet retires to his room and wails bitterly. Then, Gen-Yee appears to capture the soul of distressed T.J. The true identity of Gen-Yee is the spiritual life form drifting in the universe. It devours the hatred of human heart for living. T.J.'s mental energy is too strong for Gen-Yee to overcome. The sorcerer loses his own energy and disappears.

Damaged in the battle of "Imperial Tiger," Thunder Jet's ship, "Kongo" is wandering in the frontier of galaxy. Resourceful Sishin calls for help of merchant fleet and repairs the ship at an amazing speed. The battleship is ready but the commander's heart is far from it. Then, Simone appears in his mind and encourages him to fight on until he attains to his dream. T.J. realizes he has nothing to lose. Better fight than just lamenting. T.J. orders his fleet to cruise out.

Sishin chooses to ambush Racko's fleet at Twin Planets in the Untouchable Zone. The Untouchable Zone is the unstable area with high electro-magnetic fields and strong energy storms. Cosishoo plans to give surprise attack from between Twin Planets. Sishin sees through it and orders to shoot Twin Planets with hyper energy blasts. Twin Planets explode and Racko's battleships are drawn into the swelling explosion, leaving only Racko's "Imperial Tiger" and Cosishoo's ship. T.J. fires at "Imperial Tiger." Cosishoo leaps in front of Racko. He sacrifices his ship and himself to save King Racko.

Thunder Jet's command ship, "Kongo," was heavily damaged in the battle of "Imperial Tiger and lay in the dock for repairing. Sorcerer Gen-Yee plans to sabotage repairing works. What he schemes is that Kingdom Gojo and Kingdom Ren fight each other on equal power and go down together. His assistant, Kagan, tries to explode the engine, but, Lan-Lan's sorcery prevents it. Gen-Yee, then, goes to the dock and attack T.J. to his surprise, T.J.'s strong spiritual power ejects Gen-Yee's sorcery.

The collapse of the HOLY EMPIRE of the Milky Way that has lasted millennium results in a cosmic chaos in the Galaxy, plunging it into a long period of conflict among warring nations. This world of conflict is ideal for the men of ambitions. Among them is a young soldier in the army of the Kingdom of Gojo, THUNDER JET. During the war with the Kingdom of SAKURA, who alone resists Gojo's dominance in the Northern Territory of the Milky Way, Thunder Jet distinguishes himself by slaying SHUZEN, the King of Sakura, and the scene is witnessed by Simone, the daughter of Shuzen, who vows to avenger her father's death. Though he is handsomely rewarded, thunder Jet is not satisfied. He feels resentment toward DAN-JOE, the King of Gojo, for ordering him and his comrades in a suicidal attack that has caused the death of many of his friends. In order to get proper compensations for the families of his deceased comrades, Thunder Jet takes his case directly to the King, a defiant act that normally results in death. Indeed, he is sentenced to die, only to be rescued by Reila, the only daughter of Dan-Joe. She is touched by Thunder Jet's unselfish and courageous act. But that night, Boot City, the capital of Gojo, is stunned by a surprise attack. Hundreds of thousand soldiers descend on the City and catch Dan-Joe's army off guard.

The force that sprang the surprise attack is the army of Queen MASSINA, the Queen of Ty and the most powerful nation in the southern Territory of the Milky Way. The command personally led by Massina herself, breaches the outer defense and is now posed to enter the main castle. This is when Thunder Jet plunges himself right into the fray. In the process, he saves one of the five Generals of Gojo, a female warrior named ROGINA and his courageous act leaves a lasting impression on her. and thanks to T.J. (Thunder Jet), Dan-Joe manages to escape. Unable to finish off Dan-Joe, Massina retreats declaring that if Dan-Joe ever attacks the Kingdom of Ty, she will obliterate the force of Gojo. Enraged, Dan-Joe orders an immediate, all-out assault on the Kingdom of Ty. But for a simple marine like T.J., what could he do? Massina had come in a fleet of Space Battleships. T.J. does not possess even a single ship of his own. Then a messenger from Dan-Joe comes to see T.J. with a good tiding. Dan-Joe wants Thunder Jet to take the command of 4077, a fleet of heavily armed warships. Thunder Jet can not believe this good fortune. He accepts it and determines to distinguish himself in a confrontation with Massina again.

Thunder Jet cruises out on his flagship, "Kongo," and encounters Racko's "Imperial Tiger" soon after. Racko's battleship has superiority in size and fire power to T.J's ship. T.J. has a hard fight at the beginning, but, finally gives tremendous damage to Racko's ship with T.J.'s amazing fight technique and Sishin's good strategy. Badly struck, Racko is forced to retreat to his Kingdom. T.J.'s trusted friends and followers now realize that T.J. is born to fight and that he is destined to fight on until he becomes one and only ruler of the entire universe.

Drifting on his wounded battleship, "Imperial tiger," King Racko is confronted by Queen Massina (One-eyed Dragon) . Racko is prepared for death but Massina offers to escort him to Ren's capital planet if Racko agrees her fight against Thunder Jet. Massina is eager to defeat T.J. she wants to destroy him before Kingdom Go-Jo gains indestructible power. To unite all the galaxy under her banner, it is indispensable to get rid of him. Knowing Queen Massina's sortie, T.J. sets out on fully repaired "Kongo." The decisive battle of two old enemies is about to start.

Queen Massina's strategy is to induce T.J.'s fleet into the dark zone where no light and no radar can reach. Sishin, T.J.'s advisor, figures out her plan and send all the battleships to the point Massina prepares to ambush. It is scuffle in the dark space. T.J.'s ship is heavily damaged, losing all firing power and One-eyed Dragon, Massina, loses all her battleships except her own command ship. T.J. hurls his ship to Massina's and jumps into it. He wins over One-eyed Dragon after fierce duel. Queen Massina ends her life, asking T.J. to look after her young brother and subdue the turmoil of galaxy.

While Thunder Jet recuperates, Reila comes to visit him. She informs him that General Rogina is blamed for the defeat and is now sentenced to death. T.J. is furious. Brushing away the restraining hands of others, T.J. goes alone to the castle. But on his way, he collapses from the loss of too much blood. Simone finds T.J. defenseless. Finally the time has come to avenge her father's death. She draws her sword. However, when she learns that T.J. is on his way to stop the execution of General Rogina and he alone can stop it, she mysteriously leaves. T.J., with the help of General Gen-Yee, manages to stop the execution of General Rogina. Gen-Yee, of course, has his own agenda for helping General Rogina.

In order to eliminate the traitors in his own Kingdom, Dan-Joe sets a trap. He orders General Gen-Yee to rise up against him. The plan works. One of his own Generals, HOCKEN, rises up to join General Gen-Yee. Gen-Yee, in turn, orders Thunder Jet to confront Hocken and destroy him. T.J. raids the flagship of Hocken and engages in a man-to-man combat with Hocken. But Hocken turns out to be as formidable as his reputation. T.J. is overwhelmed and is stripped of his weapon. Hocken relaxes. He stands over helpless T.J. and lets him know who is really behind the whole rebellion. SAN-JOE, the royalist, has recruited him for the cause in re-establishing the Holy Empire. But this split second of over confidence on Hocken's part is what Thunder Jet needed. He turns the situation around and slays Hocken.

Thunder Jet starts the governor of Nankyo. Garer, secretly preparing rebellion against Go-Jo Empire, sent a fleet to destroy T.J. Sishin, an ambitious young man with extraordinary talent of military strategy watches the battle of Nankyo through TV monitor. T.J. defeats the fleet sent by Garer before it reaches the terrestrial airspace and defends Nankyo. Sishin thinks of allaying with T.J. to realize his dream...

Garer finally revolts against Kingdom Go-Jo and with his brother's support, occupies the capital city. Regina helps Reila to escape from the castle. Garer kills Gen-Yee and Fomay. Thunder Jet tries to sneak into the city to rescue Reila.

Sishin prepares an old cargo ship and accompanies Thunder Jet who wants to rescue Reila from the city occupied by Garer. T.J. and Sishin succeeds to help Reila out of Go-Jo. But, the old cargo ship is blocked by a large fleet sent by Garer. Everybody thinks this is the end of road. Then, the old ship gears up suddenly and shakes off the battleships at tremendous speed!

Thunder Jet arrives to take his new command but the waiting soldiers mistake him for a new recruit and provoke a fight. T.J. immediately displays his strength by beating up some of the men but they are too many. He is about to be overwhelmed when Mokack, the deputy commander of the 4077 intervenes. The manner Mokack handles the situation impresses T.J. but Mokack's opinion of T.J. is not likewise. And soon, an all-out assault on Ty Kingdom begins. Among those who watch the whole army march out is SIMONE who, more than ever, determined to avenge her father's death. 4077 Heavy Armor makes a steady advance and crosses the boundary between North and south. However, many questions remain in Mokack's mind, most of all, his doubt about T.J.'s ability to lead the soldiers and ship. He fears many of his men will be sent to a battle in vain. Then, the news of an approaching enemy fleet reaches T.J. he takes command.

The approaching enemy turns out to be group of hi-speed space frigates. Despite Mokack's concern, Thunder Jet orders an attack. As it turns out, it is a decoy. Though T.J. destroys many of the frigates, his fleet is broadside by swarming fleet of high speed attack boats during the engagement. The Heavy Armor sustains damages. Enraged, T.J. orders to go after the retreating boats. Fearing another trap, Mokack advises T.J. to hold the position but he is too stubborn. He finds the enemy base of the speed boats and demolishes it. However, just as Mokack has predicted, it too turns out to be a trap. While T.J. bombards the base, MASSINA pounces on the convoy of supply ships in the rear. T.J. is forced to turn around to rescue them. That is when the main force of Massina's fleet comes down on Thunder Jet with its full might. Now, his entire fleet is in danger of being decimated. Yet, T.J. remains cool. He is at his best when the ship is down. He turns the situation around and defeats the enemy. Thus a close mutual trust begins to bond the commander and his deputy, T.J. and Mokack. His men too finally come around to trust T.J.'s ability.

The combined force of Southern Territory is now on an all-out offensive. It forces Gojo's army into defensive operation and soon, it becomes a rout. Even Thunder Jet's flagship is badly damaged and he has to keep a low profile behind a Comet until repairs are being made. Then, T.J. spots the fleet of Massina's main force approaching. He mounts a surprise attack, a daring but a desperate assault. He heads straight to Massina's flagship to destroy Massina once and for all. But he faces deadly counter-attack by Massina's deputy, Hee-Lai, and is critically injured. Thus, MASSINA manages to slip away from his burning ship telling his younger brother to watch and learn from T.J., the true courage of a warrior. It seems now T.J.'s luck has finally run out. In a nick of time, Rogina's rescue team arrives and gets him out of the burning ship. After this battle, the cease fire is arranged between Gojo and the combined force of Southern Territory.

Many of those who served the Holy Empire are bureaucrats and they remain as the royalists. To further their own ambitions, they plan to destroy Dan-Joe by using Simone, the one and only remaining link to the royal bloodline, as the symbol for their cause. Queen Massina, too, sees advantage in utilizing Simone's position. She sends Hee-Lai for a secret contact with Simone in an effort to find out where she stands. On his way back from the meeting, Hee-Lai is discovered by Thunder Jet. They engage in a fierce battle but Hee-Lai manages to slip away . But T.J. now knows there's some sinister plot to unseat Dan-Joe lurking in the dark. Then, he receives the most puzzling order of all from Dan-Joe. He is ordered to live with Simone, the very person who wants to kill him.