Nia learns of Kamina's significance in Simon's erratic behavior and offers him some stinging, yet honest advice, which draws the ire of an untrusting Yoko. With tension building within the Team, the crew scrambles to stand by Nia's side when Adiane returns to complete her stalled attack.

On their way to Teppelin Team Dai-Gurren stumbles upon a vast ocean and must wait before crossing it. While the rest of the group play at the beach, Yoko starts to feel uneasy about Nia. After preparations are complete, Team Dai-Gurren begins their sea cruise, oblivious to the fact that an ambush is underway by Adiane and Viral.