The Three Guards
While on their way towards the Imperial Captial Guygalos, Van and the rest of the gang had fought their way through Captain Sever's Unit. Then after that, the gang is making there way through the Valley of Heroes. While in the Wind City, the Imperial Army had laid waste to all of the city. The three guards came after the Imperial soldiers, piloting three old model Saber Fangs. Laying waste to the entire Imperial Division with in a matter of moments. The three guards had gotten their revenge for them destroying the city. While back at home, Major Bord had come so that he could tell the three guards that a group of bandits (Van, Zeek...etc) were carrying an imposter Prince Rudolph and that they should be immediately dealt with. Then the three guards rushed off and found Van, he told them to meet them in the fighting grounds. Irvine went up first and knocked out one of the Saber Fang's. Then Van went against the second, beat him but at the cost of his boosters. He fought the third one and
Aired 08/04/2000EP 31 - The Three Guards

Zoids
Zoids are beast-like fighting machines used in both everyday use such as transportation, and special use such as war. Some types of Zoids, know as Organoids, are miniature Zoids that are living organisms. These Organoids have the capability to fuse with a non-living Zoid and make it much more powerful.
Van (Ban) Freiheit discovers a Zoid Organoid in an abandoned laboratory while running from two strangers piloting Zoids. Also in the laboratory, in an animated suspension tube is a strange girl. He breaks the tube open and takes her and the Organoid with him. Spotting a ruined Shield Liger Zoid outside nearby, the Organoid fuses with it and repairs the damages. Making his escape, Van names the Organoid Zeke, and decides to keep him as a friend. The girl, who says her name is Fiona, wants to find something called Zoids Eve, and so Van, Zeke, and Fiona begin their adventure.
(Source: AniDB)