Da Alex Row sich weigert die „Fracht" zum Kaiser zu bringen, attackiert das neue Kampfschiff Urbanus die Silvana. Nun sind Alex und Vincent gezwungen zu kämpfen. Wird die Urbanus die Silvana zerstören?

Alex announces that they are going to battle against Urbanus. Although she hesitates at first, Sophie announces their mission over the loudspeakers. Meanwhile, Al has come out of her ""coma"" but she has no recollection of what has just happened. Dio refers to her as ""genuine"" but does not elaborate. Later, when Sophia confronts Alex, he tells her she can just leave the ship, but he refuses, reminding him that she is his first officer. Tatiana briefs the vanship pilots on tactics against the Urbanus, and much to Alistia's chagrin, chooses Claus to be her navi.

Lavi and Al prepare water and a lunch for Claus before he takes off. Alex is leading the Urbanus, and three other ships, into the Dragon Fang. While Vincent does anticipate Alex's moves, he doesn't anticipate the other captain's desperate battle response. Despite the Urbanus dealing a crippling blow to the Sylvana, Alex is able to sink two of the Urbanus-class ships.

Al and Lavi are thrown to the ground, and Lavi is knocked unco

龙之牙。这个在上升气流的云海漩涡中耸立着无数奇形巨岩的地点，正是亚力克斯所最擅长的战场。“前进方向，龙之牙。迎击乌尔班号！”，随着亚力克斯的号令，银之战舰与直属于安那托勒皇帝的乌尔班舰队之间的决战于焉展开。

龍之牙。這個在上升氣流的雲海漩渦中聳立着無數奇形巨巖的地點，正是亞力克斯所最擅長的戰場。“前進方向，龍之牙。迎擊烏爾班號！”，隨着亞力克斯的號令，銀之戰艦與直屬於安那托勒皇帝的烏爾班艦隊之間的決戰於焉展開。

Le combat entre le Silverna et l'Urbanus est inévitable lorsqu'Alex refuse d'obéir aux ordres de l'Empereur et de remettre Alvis à Vincent. Tous les vanships sont envoyés au combat. Pour se venger d'Alister, Tatiana choisit Claus comme navigateur...

Alvis torna in sé stessa pur non ricordando nulla dell'accaduto, e nel frattempo Alex fa il suo ritorno nella Silvana annunciando l'incombente battaglia contro la Urbanus di Vincent.

アレックスがアナトレー皇帝の要求を拒否したため、新型戦艦ウルバヌスは、シルヴァーナに対して攻撃を開始する。