: The gang utilizes their versatile multi-terrain vehicle, the Gratan (Caterina), to track the protagonists across the ocean.

: Jean’s optimism about technology is contrasted with the destructive power of the Gratan.

The story follows the immediate aftermath of Nadia and Jean's escape from the island.

: The "Grandis Gang" (Grandis, Sanson, and Hanson) continues their relentless pursuit of Nadia and her mysterious Blue Water jewel.

: A high-stakes chase ensues. Jean attempts to use his scientific inventions to outsmart the trio, but the Gratan's superior technology proves overwhelming.