Nuï is saved thanks to Wyatt Whale. However, when Corto finds him lamenting about the other islands' fate and learns there might be a way to save them all, she embarks him, the Tikis, the Pirates and the Bees, on a trip to Tortuga, the biggest Shorescrubber settlement to get help from its powerful ruler, the Rust Queen.

The Tikis need to qualify for the Rotor Punch, a drone racing tournament, to obtain the Aquae crystals needed to power Whale's idea to stop the rising waters. In the race, they meet old acquaintances, some they would have liked to forget

The Tikis have to race against the Blizzard Bosses in Tortuga's frozen area, but Corto and Oro can't stand the cold weather. Manta offers to help Corto as a way to get back at Pavel.

Saddened by an injustice done to him, Oro steals a relic from the Rust Queen's museum. When he and Corto are caught by Ifa before they can deliver it back, they must follow a shorescrubber tradition and win a race to be pardoned.

Corto messed up again and angered the Zaelots with a prank on Ifa. In order to fix her mistake, she and Oro have to brave the powerful maelstrom Nurato to get a new relic for the Zaelots.

For a love-themed race, Corto and Manta are paired and even have to pilot a combined drone together to race against Hannah and Sun, much to Corto's chagrin.

The Rust Queen announces a royal race where all eight teams will participate, but the Tikis do not know the rules and do not get they have to ally themselves with someone if they want to win. When the alliance between Hannah and Manta dominate the race, Corto must find a way to overcome this hurdle.

While punished for a mishap caused by Corto, the Tikis are introduced to an illegal racing track by the Pirates. Corto recognizes someone in the way of piloting the champion, the Aquae Knight, however, her discovery attracts the attention of an old foe, Kass Krane.

The Tikis must race against the Falcons for a race where the skills of the mecanix are the keys to winning. Both teams' mecanixes, Mouse and Lila, end up striking a friendship which displeases Corto and Hannah, who are very competitive with each other.

After a race, the Rust Queen compliments Corto, which pleases the young girl but irritates Ifa. When Corto declares she is going to enter a restricted area to fix a problem for the Zealots, Ifa gets even more riled up. While Corto is eventually reasoned, Ifa decides to tackle the issue himself, even if it means risking his life.

During an official dinner, Corto's words trigger an argument between Lavinia, Wyatt Whale and the Rust Queen, which ends up with a race; the three older pilots against each other and one younger pilot: Corto. Corto feels pressured to win and prove the younger generation's worth as Hannah, Manta and Mina try to help her prepare.

Enki's parents visit him on Tortuga, but he gets jealous of the attention they give to the Planktons, their next adversaries. However, the Rust Queen decides to change the rules and sends the teams into Tortuga's forest to prove the existence of the Monkeyglide, a creature thought to be a myth. Enki's desire to impress his parents and beat the Planktons might be a problem.

Oro accidentally angers the Planktons and they cause Maroro to crash in the frozen area of Tortuga. However, when they go back to get him back to the Tikis, they do not find him: he has been taken by the "ghost of Tortuga". Even if the Rust Queen forbade them from going there, the Tikis would not abandon Oro, and the Planktons would tag along.

Enki's curiosity is triggered by Mina's explanation about a lost relic of Maelstrom. However, he accidentally catches the interest of the Rust Queen in the relic so that she can add it to her treasure. The Tikis will have to find a way to fix this mess without creating too many waves.

For the next race, the Rust Queen announces it will be a game of hide-and-seek between two teams, the predators and the prey. Corto is not thrilled at being a prey, but she is even less happy to be teamed up with the Planktons. However, Lemanja's ideas might be what they need to win this game.

While a Bee-Turtle acts aggressively on the shores of Tortuga, Gungir, the Blizzard Bosses' drone, is reportedly stolen. Pavel accuses Corto, but the thief turns out to be an unexpected person with an incredible reason.

Chef Otaqua participates in the Rotor Punch by having the Droners cook. While unconvinced by any of them, he chose the Blizzard Bosses and the Tikis for the race. Corto is happy, but she finds herself in a bind when Mouse and Enki cannot stop arguing about what they must cook while Pavel is revealed to be a talented cook.

Baba's behavior causes concern to Ifa as Mouse discovers a part of his past that explains why the next race seems to agitate him so much. Despite Baba and Mouse's warnings, Ifa and Corto take a shortcut that lands them straight into trouble.

Corto impresses everyone with her piloting skills, but the Tikis' next race is about enginerd skills. Enki's patience might run out.

The Rust Queen and Whale came up with a new surprise: they put a labyrinth in the race. Meanwhile, Hannah is stressed as her relationship with Kami becomes tense, not helped by Corto's tauntings.

The Rotor Punch is put on hold as the Buzzball competition begins. The Tikis are visited by Mouse's older brother, Vago, as they meet the Rust Queen's unexpected guest, Buzzball team Tsunami's champion: Loopi. Loopi is the person Corto admires, but she has to find it in herself to win against her idol.

Hannah discovers a shocking secret about Cold as the Tikis and the Blizzard Bosses are about to race. Pavel wants to steal the key to the vault, and Hannah and the Tikis must find a way to stop him without alerting the Rust Queen.

A dispute between Oro and Nemo leads to a dangerous bet as the Tikis and the Sirens have to race and fly by the dangerous Magnetis, a giant magnet which eventually pulls in anything that gets attracted into it. Meanwhile, Kami decides to take revenge on Nemo for his nasty temper by scaring him during the race. But, it does not go as planned.

The final race is here, but Antaboga has found new allies and they threaten to destroy Tortuga. Meanwhile, Oro is torn between two worlds.

The Rust Queen prepares to confront Antaboga as Tortuga falls into chaos. The Tikis must fight and Oro has an important decision to take.