A boy befriends a young dinosaur brought to the present by Obular's time-manipulating Brain Beast.

Takeshi and the Liveman try to work out a final solution regarding Gon while Obular decides to experiment in making the dinosaur into a city-destroying giant.

Bias transforms the idiotic gang leader Arashi into Doctor Ashura, the ultimate genius who befuddles the Liveman with both brains and brawn!

A malfunctioned Jimmer who falls for Colon assists the team in stopping a plot by Mazenda to poison the city.

Jou protects a robot being targeted by Gash for a special crystal Bias wishes to obtain.

Megumi fights to regain a doll with emotions that is transformed by Kemp into a doll-controlling Brain Beast.

Gou is kicked out of Volt for his failures, forcing him to return home in order to resume experiments for becoming the ultimate Obular.

Yusuke attempts to convince Gou's mother to save her son as Volt bring him back for their own schemes.

Yusuke tries to convince a boy the importance of hard work in school and fun while dealing with Mazenda's mental manipulation of children.

The Liveman are unexpectedly assisted by Megumi's father as Volt ups the ante with the activation of the Giga Project.

Junichi is implanted with the child of Guildos and Butchy's Brain Beast, forcing him to make a decision regarding his unusual situation.

Great Professor Bias begins a mysterious competition for his generals.

Kemp is forced to confront a noble deed of his past when he creates a Brain Beast to steal blood for upgrading his altered form.

Yusuke and Kemp return to Academia Island to see how far they've come and settle old scores as promised four years prior.

Junichi tries to reconcile with a member of his school rugby team as the rest of the team becomes minions to Mazenda's Brain Beast.

Jou assists an alien in retrieving a seed from its homeworld trapped within a meteor Brain Beast.

A tricky jewel thief interested in Megumi gets his hands on a gem containing a Brain Beast that helps him in his devious tasks.

Junichi desperately tries to prove his power against Guildos, who wishes to prove the power of his planet to Bias.

After discovering the horrifying truth about himself and Guildos, Butchy goes on a rampage through Earth which is interpreted sympathetically by Megumi.

Mazenda fights the Liveman to complete her goal of achieving a thousand-point brain for Bias, even as Gou tries to warn of the consequences of doing so.

As Kemp finally achieves a thousand-point brain for Bias, Yusuke sneaks into Brain Base to stop the Giga Brain Wave from controlling humanity.

As a Bias with restored youth descends to Earth to continue his cycle of destruction for the sake of knowledge, the Liveman must hold him off and find a way of either changing his ways or stopping the mad genius permanently.