Accompanied by Naze, Tekkadan visits the Saisei, the stronghold of Teiwaz, in order to meet with Teiwaz's representative McMurdo Barriston. Here, Orga receives a surprising proposal from Naze.
A Letter from Tomorrow
Tekkadan and Turbines go on ahead to Earth, leaving Mikazuki and Yukinojo on the Saisei to complete final adjustments to the Barbatos. But the events aboard the Saisei have greatly affected their respective states of mind.
While on patrol, Akihiro and Takaki encounter unknown enemies and engage them in battle. The attackers turn out to be Brewers, a pirate group that operates between Mars and Earth.
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.
Vessel of Hope
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.
Trail of Footprints
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.
Kudelia and Tekkadan witness Gjallarhorn's brutal suppression of the workers. Seeing the true situation of the colonies, Kudelia makes a fateful decision.
Tekkadan's members attempt to leave the colonies behind and descend to Earth at last but they miss their chance due to one last item of business in the colonies. They are contacted by someone, who claims to be their supporter.
Tekkadan has finally made it to Earth successfully introducing Kudelia to Arbrau's representative, Makanai Togonosuke. However, they will have to accompany Makanai to a parliamentary general session taking place in Edmonton.
To the Place of Return
During preparations to depart for Edmonton, Tekkadan finds itself under attack by Gjallarhorn. Setting a trap for their relentless pursuers, Orga makes a counterattack.
Not Yet Home
Though Tekkadan is exhausted by its repeated battles with Gjallarhorn, its members are still determined to get to Edmonton and they hasten toward their goal.
The Final Lie
As Tekkadan heads for Edmonton, it finds Carta blocking the way seeking a showdown. However, Mikazuki and the others won't let their progress be halted and they press on ahead.