Farewell To A Friend
After barely escaping from Raven. Van adn the rest find some shelter. Rudolph wakes up and was having a bad dream and wonders if he will ever get back home. Later that morning, Rudolph asks if they could take him to Guygalos and teach him how to pilot a zoid. At the palace, Minister Prozan is sending out search parties and they are still looking for the prince as he explains to Prime Minister Homalef. A whole herd of Rev. Rapters and Redlers are searching for the prince, but were taken down by Raven and his Genosaur. Van starts teaching Rudolph how to pilot a zoid properly but Rudolph needs more practice. Then he gives Rudolph some special zoid pilot training. They find a bunch of Imperial Redlers with their zoid cores ripped out and Dr. D. Dr. D believes the Deathsaur was responsible for the damage and ruins of the Redlers. Dr. D tells everyone about the Legend of Beast of Destruction, the Deathsaur. It goes: One Deathsaur, destroyed a platoon of 1,000 zoids and whipped out a whole na
Aired 05/02/2000EP 22 - Farewell To A Friend

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)