Robotex

Three metal organisms from outer space escape from their collective and land on Earth, meeting a child named Stony.

Kai protects Stony when minions attack and synchronizes with him to get a boost in battle.

Dr. Franken tries to kidnap Stony.

Kai, Iota, Taff and Stony explore the proton waves below the abandoned mine and discover the Main Frame and the ancient minions that protected it for thousands of years.

Stony, Reina and Brandon grow closer by sharing their knowledge of the Robotex; the Robotex start to gain more independence from Main Frame's control.

Iota tries to help Reina gain confidence in her higher-than-average strength.

Seeing Cyclo failing to capture Kai and the other Robotex, Volcan sends the second corps commander, Anarchy, with Cyclo on his next attack.

A defeated Volcan seeks the source of the heroes' strength and orders Anarchy to learn the truth from Stony; Taff looks after Brandon.

Stony, Reina and Brandon grow closer; the Robotex ask their human friends for help to prepare for the next villain attack.

Omicron searches for a strong organism; Cyclo goes on a retrieval mission to the ancient Robotex site below the mine at the same time as the Robotex head there to scavenge supplies.

When Cyclo and Anarchy attack Iota and Taff, Kai demonstrates a new strategy.

Kai and Iota head to Cyclo's spaceship on the moon with Stony and his friends; Taff surrenders to Cyclo after Kai and Iota attack him.

Volcan sends Omicron to reclaim the spaceship; Stony suspects Dr. Franken as the book thief.

After stealing books from the library using Pet, Omicron surrenders to Kai and Iota because of his fascination with the theatrical plays on Earth; Iota, Stony and his friends head back to Earth to return the books.

Analyzing the heroes' new skills, Volcan decides to send the third corps commander, Pandalum, to Earth; Pandalum devises a two-pronged attack.

Iota and Taff respond to the attack on Earth, leaving Kai alone on the moon to fight Omicron, Pandalum and Cyclo.

Pandalum challenges the heroes to a formal battle at a lunar stadium.

Assassin Marcia attacks Dr. Franken's place, and the doctor flees to Omicron for help, but Omicron rejects his urgent request; the battle between Anarchy and Taff begins at the stadium.

Stony and Dr. Choi head to the moon station to meet Kai and the Robotex, and Dr. Choi learns of Main Frame's location; Iota's new combat skill, Nova Gears Shield, surprises Pandalum.

Marcia tells Dr. Franken to install an EMP bomb in Kai's hiding place; the ensuing explosion injures Taff, forcing Brandon to synchronize with Omicron to fight on his behalf.

With Kai unable to fight, Stony pairs with Omicron and Brandon pairs with Taff.

Pandalum 2 is touched by the boxing game on Earth, where the winner and loser embrace each other, and looks to Kai and Stony to reconcile his confusion.

Vulcan looks for a human to synchronize with for his battle against Pendulum 2.

Stony, Reina and Brandon confront Volcan and Dr. Choi finds a way to assist.

Dr. Franken steals equipment from the Robotex; Volcan starts to malfunction.

The virus infects Volcan and sets him on course to attack Earth; Taff uses quick thinking to thwart the attack.