Planet Zi, a world where warrior bio-machine lifeforms called Zoids live. They are controled by human pilots in a war with the Republic and the Guylos Empire. One day a boy named Van being cased by bandits hides in some old ruins, he finds two pods in a hidden room & opens one to find out its an odd dragon-like Zoid called an Organoid which he names Zeke. Zeke then ressurects an old dead blue Shield Liger Zoid for Van to pilot. When Van opens the 2nd pod a very mysterious girl named Fiona comes out of it. They go on the adventure to find more about her past & to find the Zoid Eve, they meet new friends & they get into some serious problems including the war which they try to stop.
Zoids: Chaotic Century, simply titled Zoids (ゾイド?) in Japan, is the first of Five anime series based on the Zoids range of mecha model kits produced by TOMY. The series was animated by XEBEC, and aired from 1999-09-04 to 2000-12-23 on TBS. Although the first series to be produced for the franchise in Japan, Chaotic Century was the second series to be dubbed and aired in Western nations, following Zoids: New Century Zero.