"Zoids: Chaotic Century" is an anime series set in a world where giant mechanical creatures called Zoids roam the land. The story follows a young pilot named Van Flyheight who discovers a mysterious Zoid known as the Blade Liger. As he embarks on adventures, he encounters various factions and learns about the conflict between the Helic Republic and the Guylos Empire. The series explores themes of friendship, loyalty, and the struggle for peace. Alongside his friends, including Fiona and Zeke, Van seeks to uncover the secrets of the Zoids and their connection to the ancient past, while facing numerous challenges and battles.