Lupin, Goemon, and Jigen hop aboard a mini‑helicopter and fly to the enigmatic “Drifting Island” in search of a rumored treasure hidden somewhere on the isle. While exploring, the trio encounters the lethal Nanomachine, the island’s security system. By triggering an alarm, they inadvertently activate the Nanomachine. The key to unraveling the island’s mystery lies in the small nation of Zufu, once prosperous but now ruled by the ruthless, knife‑collecting General Headhunter. Fujiko carries out her usual probing, hacking into General Headhunter’s computer in hopes of uncovering crucial information. Meanwhile, Zenigata has received a video message from Lupin…