In the US the story of Chaotic Century is split into two seasons, with a time skip in the middle. In Japan "Guardian Force" is considered the second series. Three to four years after the initial arc ("Chaotic Century"), the second story ("Guardian Force") begins. The two warring nations seen in the first arc have made peace, and to ensure it remains, they establish a joint military task force called the Guardian Force. Van becomes a part of this force, and after some time again goes searching for the elusive Zoid Eve. On the way, he meets up with both old and new friends and foes.