The background story of the Panzer Dragoon series.
Although Panzer Dragoon II Zwei is the second game in the series, its storyline is set before the events depicted in the first Panzer Dragoon game.
Despite this being the first game in the series, the plot of Panzer Dragoon is set long after the events of Panzer Dragoon Zwei; overall, this story is the second part of the series' greater storyline.
After the events of Panzer Dragoon drew to a close, roughly thirty years passed before the next chapter of the story, Panzer Dragoon Saga, took place.
After the events of Panzer Dragoon Saga, the world changed drastically. However, the legacy of the Ancient Age continued to cast a shadow on the world.