This time Lupin is after 500 tons of gold bullion that used to belong to the House of Romanov, the last rulers of the Russian Empire. His only clue is a code in an old book that a cipher machine has broken down to the words "Bank of Liberty." As always, whenever Lupin's involved, the situation gets complicated. This adventure takes him through the USA and Russia, with loads of action and classic Lupin-style escapades along the way.

(Source: AniDB)

Inspector Zenigata has been removed from the Lupin case which leaves him despondent, and he ends up drinking with Lupin & Jigen. Lupin decides that he and his gang should work with Zenigata to solve his new case, investigating a group of arms dealers known as Shot Shell. Lupin gathers his partners together (Jigen, Goemon, & Fujiko), and with Zenegata they steal a Russian submarine. They kidnap a scientist named Karen Korinsky to help them operate the sub, and also to protect her from Shot Shell. Meanwhile the ICPO assigns a man named Keith Hayden to the Lupin case, and unlike Zenigata he wants Lupin and his group dead. Where ever Lupin and friends go, Keith follows, as the officer attempts to pick them off one by one. 

(Source: ANN)

A Hong Kong crime boss contracts Lupin, Fujiko and Jigen to recover a legendary dragon statue that sunk with the Titanic. Unfortunately for them, the dragon is a treasure of Goemon's clan, said to have power exceeding that of his Zantetsuken sword; he resolves to protect the statue at all costs, even if it means killing his old friends. 

(Source: ANN)

Lupin's on the trail of a decades-lost treasure—the collected booty of World-War-II-era thief Harimao—worth billions of dollars. But as he plans to con retired British spy Sir Archer into giving up the location of the stash, Archer himself gets into the hunt. Lupin now has to team up with his former mark to outwit a more sinister opponent who wants the treasure for himself. And of course, Zenigata's on the scent and gunning for the gang once again.

(Source: ANN)