20 years after a climate disaster, adventurers known as "salvagers" roam the oceans looking for treasure. The salvagers Aika and Rion are looking for the energy source "Lagu". But siblings Nena and Rudolf Hagen are also looking for Lagu.
Aika and Rion are captured by the Hagen twins. Rudolf falls in love with Aika. In exchange for sex with her, he is willing to tell her everything about Lagu. Meanwhile, Rion escapes. Gastor is aboard as well and tries to save Aika.
Aika is free but a heavy battle ensues aboard. Aika tries to rescue Rion who wants to gather intel about Lagu. Then they get help: The Hagen siblings are being attacked by an armada.
Aika and Rion finally meet up. But Hagen continues with his sinister plan: He wants to retrieve Lagu from the Earth's core from space. Then he wants to return to Earth to rule. Aika and Rion and start their final battle against the twins.
Aika's boss is happy with her work and sends the complete team on vacation. On an island in the South Sea, Aika meets the charming Pierre. They fall in love. But Pierre is no man and all is a ruse by Hagen and his sister Nena.
Aika and Bianca are hired for a dangerous mission. Aika's body is being researched, presumably for an aircraft. But all is a maneuver staged by Delmos.
Agent Aika and the K2 organization have major issues: HQ is destroyed and the boss is hospitalized with heavy injuries - and Aika is missing in action. The decisive battle between good and evil is imminent.
