The episode starts with Tatiana who flies with her Vanship inside the Grand Sream looking for Disith ships as they prepare for a confrontation. Meanwhile, Claus and Lavie vanship two pilots are preparing for a race.

Before qualifying races however Claus and Lavie decide to take a job. They must deliver a message to Duke Madossein by his wife. In addition they also choose to personally hand over a message from her daughter. Madossein Duke is a master of the fleet Anatory, so Claus and Lavie are forced to deliver a message in the middle of a firefight between Anatory and Disith vessels.

In the clash we see Fusilier Moran for the first time in action. The episode ends with Claus and Lavie who climb on the ship the commander Duke Madossein.

Moran is "officially" accepted by the crew of the Sylvana, albeit in a most interesting manner.

Sophia presents the chance for Claus and Lavi to enter the 8-Hour Endurance Race at Horizon Cave. They accept the challenge, so long as the Sylvana mechanics will help them out. At the event, Al is allowed to "pick" the vanship that they must repair and fly for the race. Tatiana and Alistia, however, have a mission during the race. They need to hit a specific point in the race at a specific time. Tatiana expresses her dislike of "amateurs" i.e.: Claus and Lavi, but Alex shuts her up.

Dio and Luciora show up, because Dio is with his sister, Daphne. Dio shows an interest in Claus, who doesn't return the fascination. Dio informs Claus that he is there to fly in the race with him.

While the race is going on, Alex is at an auction to purchase something rare. It turns out to be an EXILE item, and Alex's opening bid on it, is 10,000,000 Claudia. This shocks the man sitting next to him, who just

While Lavie recovers from her injuries on the crashed Silvana, she dreams of her childhood with Claus, whose family moved to Norkia and became neighbors with Lavie's. Their fathers, Hamilcar Valca and Georges Head, immediately became best friends and teamed up as a vanship pilot and navigator. Claus's mother, Justina, took care of Lavie as if she was her own daughter. Valca and Head taught their children to fly a vanship and assigned them mock courier missions. Lavie recalls her father's two friends, a male vanship pilot and a female navigator, but cannot remember their names. One day, Valca and Head received an assignment to cross the Grand Stream to deliver a peace proposal to Disith and left with their two friends. However, Valca and Head lost their lives in the attempt, and Justina died not long after. In a separate dream, Alex Row sees the two vanships in the Grand Stream. After they were orphaned, Claus and Lavie began training to fly a vanship. They were eventually forced to sell their house to save the vanship and began training for courier missions. When Lavie finally awakens, she finds herself crying from the memories. Dio and Alister finally locate Claus and Tatiana near the field of Disith migration capsules. Claus is reunited with Lavie and informs her that their hometown of Norkia has fallen to Disith.

Exile enters Disith territory, followed by the Guild and alliance fleets. The alliance fleet loses one-quarter of its ships after Exile continues its indiscriminate attack, but Sophia orders it to continue at all costs to defeat the Guild. In the Grand Stream, Dio pursues Claus's vanship and relives their race at Horizon Cave. However, when he realizes Lucciola is not with him, Dio falls into despair and is thrown off his vanship by a gust of wind. Just as the alliance fleet falters in its attack, the Urbanus leads the remaining ships in protecting the Silvana as she makes a final attack at Delphine's ship. Alex, still a prisoner of Delphine, catches her off-guard and strangles her before breaking her neck. As the Silvana destroys Delphine's ship, Wina hears Alex's final words at her listening post. Claus and Lavie finally cross the Grand Stream into Disith, completing the feat that their fathers could not achieve. There, they find the remaining alliance fleet and bring Alvis to Exile. Claus recites all four Mysteria, to which Alvis responds, and Exile sheds its defensive cocoon to reveal a starship. Inside it, Claus and Lavie find their fathers' vanship and remains. The world they have been living in is revealed to be in the shape of an hourglass, and Exile takes Claus, Lavie, and many others to a new, conflict-free world. Claus and Lavie are reunited with Dunya and Mullin, the latter of whom has recovered from his injuries. They are joined by Alvis, Tatiana, Alister, Holly Mad-thane, and several children.

In the hope of capturing their next battleship, Fam and company visit Eldorado, an amusement center where underground Vanship races are held.