On the ocean floor, Lupin is once again seeking a treasure hoping to get on Fujiko's good side. As Zenigata chases them on sea and land, people around the gang begin to vanish mysteriously. The fog rolls in and Mamo Kyosuke appears in a burst of light; he claims to be from the future and seeks revenge on Lupin III for what Lupin XIII has done to him. Mamo hurls Lupin, Jigen, Goemon, and Zenigata 500 years into the past; as two warring factions fight over a legendary shrine dedicated to time travel, Lupin must find a way to survive the past to ensure his future.

(Source: Lupin III Encyclopedia)

This movie is a remake of episode 13 in the original Lupin III series.

Woonan is the legendary Great Gold Pirate, earning the nickname after accumulating about 1/3 of the gold available in the world. Even after his disappearance, the tales of his gold being stashed away in a remote island continue to persist, a juicy target that other pirates lust for.

One of the pirates going to great lengths to attain the treasure is El Drago. He and his crew have hunted down Woonan's former crew members one by one, and along the way, they find the map that will take them to the hidden island.

The map is not all they come across; they also manage to come into contact with the straw hat pirates. After a short battle, Luffy and company are robbed and separated from one another. Now they must find a way to make it to the island before El Drago does and take the legendary treasure for themselves.

Following a cataclysmic nuclear war, the world teeters on the brink of complete destruction. Civilization is polarized into a degenerate society where opposing packs of marauding scavengers prey on helpless, homeless nomads. For those who are lucky enough to survive the constant brutality and danger, it is a bleak existence. Life an death blur into abstractions. The only hope left for mankind is to find a hero worthy of becoming the next "Fist of the North Star" - an enlightened warrior - who is capable of leading those with the will to survive out of this barrenness into a new world. But in this savage no-man's land of shifting loyalties and power-hungry demi-gods, heroes are in short supply. 

(Source: AniDB)

Hitomi Kanzaki is in a very depressed mood. She only wants to sleep and fade away. Her misery summons Lord Folken who sends her to Gaea. The people of Gaea think she is the Wing Goddess, who can call upon the legendary Dragon Armor called Escaflowne. On Gaea, King Van, the sole survior of the White Dragon Clan, is also in a depressed state. Swearing an oath to get his revenge on the Black Dragon Clan that obliterated Van's kingdom, he lives by the sword. Now that the Wing Goddess has finally appeared, she posseses Gaea's world fate in her heart. Escaflowne will either lead Gaea to peace or total ruin.

(Source: ANN)