Tekkadan has discovered a huge object at a mine it is managing. Having received a message from Orga about the object's true nature, McGillis decides to pay a secret visit to Mars.

The awakened mobile armor, along with a huge quantity of sub-units, heads for a densely populated area to begin its attack. Tekkadan attempts to hold back the onslaught, but is helpless against its overwhelming power and superior numbers.

Outnumbered, Tekkadan turns to McGillis for assistance, and launches a mobile armor mopping-up operation. Meanwhile, a strange phenomenon occurs in the Gundam Frames that are confronting the mobile armor.

Mikazuki faces off against the mobile armor. The battle continues with mounting intensity.

Lafter and the other Turbines members take their leave of Tekkadan. Meanwhile, at Teiwaz, the organization's number two Jasley Donomikols plans a new maneuver.

Tekkadan has been thwarted in its attempt to rescue Turbines from danger. Orga restrains himself in response to Naze's wishes.

A modest funeral service is held aboard the Saisei. But Jasley has been preparing yet another stratagem.

With the repairs to the Barbatos complete, Tekkadan musters its fighting strength. The members ready their resolve for the confrontation with Jasley.

Gjallarhorn's Earth headquarters has been captured in a coup d'état by young officers. Among them is McGillis, who heads for a facility underneath the headquarters.

The Arianrhod fleet, led by Rustal Elion, attempts to gather all its forces to fight the coup d'état.

After many complications, Tekkadan finally joins the battle against the Arianrhod fleet.

Tekkadan revives and launches an attack, aiming to escape the battlefield. Meanwhile, the fight between McGillis and Gaelio becomes increasingly ferocious.

Tekkadan plans to return to its Martian headquarters and start over. The situation, however, has undergone a dramatic reversal.

Tekkadan is in a difficult predicament. A huge Gjallarhorn force then begins deploying around its Martian headquarters.

Mikazuki belongs to the private security company CGS at the Martian city of Chryse, which has been hired to escort Kudelia to Earth. But just as preparations for departure are underway, Gjallarhorn attacks CGS in an attempt on Kudelia's life.

The adults of CGS flee in the face of Gjallarhorn's attack, using Mikazuki and the other children as decoys. Gathering the children who have been left behind, Orga decides to fight back against Gjallarhorn and puts a certain plan into motion.

Thanks to Mikazuki and the Gundam Barbatos, Orga's group has temporarily repulsed Gjallarhorn, though not without many sacrifices. As they are discussing their next move, one of Gjallarhorn's Graze mobile suits again appears at the CGS base.

Kudelia is distressed so many boys have lost their lives because of her. Mikazuki takes her to the farm run by Biscuit's grandmother, where an unexpected encounter awaits.

Kudelia and Tekkadan finally leave Mars behind them and head for Earth. With a ship waiting for them, they attempt to travel by shuttle to a low-orbital station but are attacked by Coral's Gjallarhorn forces.

The members of Tekkadan need a guide in order to reach Earth despite Gjallarhorn's surveillance. To gain a powerful backer, they attempt to negotiate with Teiwaz, which is based in the Jupiter Sphere.

Tekkadan has made contact with Turbines, which runs Teiwaz's transport division. But they find themselves clashing with Turbines over their group's origins and property.

Having demonstrated Tekkadan's strength and legitimacy to Naze, the leader of Turbines, Orga and the others renew their negotiations with Teiwaz. Meanwhile, Atra visits Turbines's warship bringing the frustrated Kudelia with her.

Mikazuki and Orga learn that Akihiro's long-lost younger brother is one of the Brewers mobile suit pilots. Tekkadan challenges Brewers in order to get back Akihiro's brother.

The battle with Brewers has cost many lives on both sides. The survivors hold a funeral service to pray for the rebirth of their fallen comrades.

After overcoming many difficulties, Tekkadan is finally about to reach Earth. Its members head for the Dort colony cluster to deliver an item Teiwaz asked them to transport when they were aboard the Saisei.

Just as on Mars, the colonies suffer great disparities with Earth and a protest movement has begun among the increasingly dissatisfied workers. As it gradually intensifies, Tekkadan is caught up in various schemes.

The colony workers have launched a protest movement against the company that employs them. As they grow more radical, the situation develops to the point of a Gjallarhorn intervention. Kudelia has been drawn into the heart of the uprising.

Orga and the other Tekkadan members have finally reached Edmonton but they are attacked by Gjallarhorn, which seeks to prevent Makanai from making it to the parliamentary session.

As the fierce battle between Tekkadan and Gjallarhorn continues, a new threat appears. To protect Kudelia and the others, Mikazuki must confront it alone.