[1] It is loosely adapted from the manga series Kiiju Shinseiki Zoido, which was created by Michiro Ueyama and published in CoroCoro Comic.

In August 2013, a Blu-ray box set of the series was released in Japan, it optionally came with a limited edition Blade Liger.

Throughout the recent history of the series, Zoids have been used as weapons in an ongoing war between the Helic Republic and Guylos Empire.

The series starts with Van being chased by a group of bandit Zoid pilots and discovering the organoid Zeke in ruins near his village.

Van hears Fiona speak of something called Zoid Eve and decides to help her find it in hopes that it will help her memories return.

Van and the others eventually reach the Republic's capital in hopes of finding information about Zoid Eve, but are caught up in the Empire's surprise assault on the city.

During the battle Van is finally able to defeat Raven, the latter destroying his own Zoid as he attempts to pierce the Liger's energy shield.

Prozen finds the remnants of legends about an apocalyptically powerful Zoid, the Death Saurer, and attempts to clone it.

When Rudolph resurfaces, Prozen claims that he is an imposter, manipulating the imperial forces into fighting against the prince and his friends.

Van and his friends succeed in returning Rudolph to the capital, but Prozen unleashes his cloned Death Saurer.

The Death Saurer goes on a rampage and almost destroys the capital, with the joint forces of the Empire and Republic powerless to stop it.

Rudolph is then crowned the emperor and peace finally begins between the Empire and Republic, but Van and Fiona don't take part in the celebration and instead leave to find Zoid Eve.

Hiltz uses the Death Stinger to destroy the Republic's capital, despite a massive mobilization of Imperial and Republican military forces.

The remaining forces gather and awaken the Ultrasaurus, a giant mobile fortress Zoid meant to be used as a last resort.

The Ultrasaurus pursues, and Van, Irvine, and Thomas close in to pin down the Death Stinger for the gravity cannon.

Fiona materializes before the Dark Kaiser, revealed to be Prozen merged with the Death Saurer's Zoid core.

He manipulates Fiona to open the doors to the Ancient Zoidian city of Evopolis, where the Zoid Eve is located.

The combined forces of the military, Van, Raven, Reese, and a fourth gravity cannon shell are unable to even harm it.

The most commonly seen Helic Zoids are the Godos, Gordos, Gojulas, Command Wolf, Storm Sworder, Shield Liger, Pteras, Gustav, Gun Sniper, and Guysack.