Ep. 3: Lupin and Fujiko encounter gunmen and a nuclear expert's assistant after a boat crash.
Aired on November 7, 1971

A collision disrupts Lupin and Fujiko’s peaceful boat trip, leading them to find Linda in a damaged vessel. Gunmen aboard a larger ship immediately attack the group. After evading the hostile boat, the trio learns that Linda serves as an assistant to a famous nuclear fission specialist. This doctor resides on an island shared with a dangerous group known as the Kirein Killers. Lupin and Jigen decide to invade the island to rescue the scientist and uncover the hidden truth surrounding Linda’s past and her connection to the island's secrets.
Episodes
- Ep. 1 · Lupin Aims for the Prize at the Newly Completed Hida Speedway Race
- Ep. 2 · Lupin confronts the flame-wielding magician Pycal to rescue Fujiko.
- Ep. 3 · Lupin and Fujiko encounter gunmen and a nuclear expert's assistant after a boat crash.
- Ep. 4 · Lupin remains imprisoned after Zenigata's tranquilizer dart while Fujiko fails to free him.
- Ep. 5 · Goemon Thirteenth Receives Mission to Eliminate Lupin with Zantetsuken
- Ep. 6 · Lupin pursues a diamond embedded in a mob boss's corpse during a rainy afternoon heist.
- Ep. 7 · Lupin III seeks to reclaim scrolls stolen by a swordsman who defeated his father.