Led by Reinhard von Müsel, the Galactic Empire crushes the Free Planets Alliance in the Fourth Battle of Tiamat. Arriving in the Imperial capital of Odin to a hero's welcome, Reinhard's victory earns him a promotion to High Admiral and the distinguished title of Count von Lohengramm. On the other side, Yang Wen-li safely returns to the Alliance capital of Heinessen without fanfare and reunites with his dear friends.

Reinhard and Yang look forward to a long-awaited reprieve. However, at the request of the scheming Duke Otho von Braunschweig, the Imperial High Command orders the new High Admiral to invade the Alliance with a fleet of twenty thousand ships. After the Duke leaks the plan to the Alliance government, three fleets totalling forty thousand ships are sent to counter the incoming attack and recreate the famous Battle of Dagon. But even though Reinhard is outnumbered two to one, he has an ingenious plan—and Yang sees right through it. Will Yang's superiors heed his warning before it is too late?

[Written by MAL Rewrite]

The special's story centers on the kidnapping of Rebecca Rossellini, a beautiful business owner who is a featured character in the new Lupin III TV anime series that is currently airing. Upon hearing of her kidnapping, Lupin rushes to her rescue. Additionally, Lupin receives a written challenge from a mysterious person named "The Masked Count" suggesting a contest: who can obtain the "inheritance of Count Cagliostro" first.

(Source: ANN)

When Fujiko acquires and memorizes papers called the Columbus Files, she is attacked and loses her memory. Lupin, a treasure hunter named Rosaria, and the cackling villain Nazaroff all pursue Fujiko, as she is the only key to the location of Columbus' Egg, a treasure connected to the mysterious Orgone Energy. 

(Source: ANN)

The final plans to finish Shell off in court have been made by Easter, Balot, and Oeufcoque. But in order to execute those plans, they must set foot into Shell's domain: the BlueEgg Casino in the center of Mardock City, and find the chip where his memories lie. If they can't find the chip, their case will be dismissed in court, and their "usefulness" will be gone – resulting in all of their deaths. Will Balot find the chip in time, while still dodging Boiled and his now mad search for her and Oeufcoque?

(Source: the witch of theatregoing)