The Earth is under attack by an alien menace known as the Boazanian Forces. A special group of people who have been properly trained to deal with this kind of emergency pilots the Voltes V robot to fight and defend humanity.

Hrothgar demonstrates his capabilities with his impressive inventions and generous demeanor and is soon selected to be the next ruler of Boazania. However, Zambojil, the son of the late emperor, becomes determined to prevent this from happening.

Hrothgar and slave rebels battle the Boazanian soldiers. Before they are captured, the rebels aid Hrothgar's escape with his airship. He pledges to return and rescue the rebels from the empire.

Mary Ann gives Hrothgar a new name, Ned Armstrong. They soon fall in love and have two sons, Steve and Big Bert. Meanwhile, Ned and the Earth's leaders build Camp Big Falcon, the base for the powerful robot Voltes V.

Ned returns to Boazan to fulfill his promise and free the hornless slaves from Emperor Zambojil. In Boazan, Emperor Zambojil tells the young Zardoz about his treacherous father. Zardoz remains loyal to the Empire.

Dr. Smith introduces the five Volt machines to the cadets. As Ned returns to planet Boazan, the Boazan soldiers try to capture him.

Zardoz bids Boazan farewell to invade planet Earth. Steve faces a military officer who thinks that he is arrogant and fires at him.

Zardoz' generals inform him that they could hasten their voyage to Earth and reach Terra Erthu in a month's time. Meanwhile, Mary Ann discovers that Little Jon had gone to the forbidden area.

The Armstrong brothers are now suspicious of their superhuman abilities and will go to any length to discover the truth.

The Boazanian empire led by Zardoz finally arrived at Terra Erthu to conquer the world where Hrothgar was hiding. What steps will Camp Big Falcon take to save their world?

The Voltes team is finally revealed! Will the team win against the strength of the Boazanian empire to save planet Earth from destruction?

An all out war between the Voltes V and the Boazanians is about to happen! Will the new heroes of planet Earth be successful in their mission, or will they fall into the hands of Zardoz?

What will be the next step of Zardoz and his Boazanian army after their unexpected defeat at the hands of the new saviors of the Earth, Voltes V?

After facing Voltes V, the Boazanians cannot accept defeat and have decided to make another beast fighter called, Vaizanger.

An unexpected event occurs at Camp Big Falcon while Voltes V is in the middle of training. Are they ready to face the Boazanian army again?

As the Boazanians attack Terra Erthu, many lives will be put in danger, including the life of Mary Anne after she failed to enter Camp Big Falcon.

What can Mary Anne do to help Voltes V defeat Zardoz and the Boazanian army?

What will life be like for the Armstrong boys now that their loving and caring mother, Mary Anne, is gone?

The Armstrong brothers seek a means of coping and forgetting the grief of losing their mother after she passed away.

Will Mark understand the pain of the Armstrong brothers if he finally discovers what happened to his mother?

Zardoz and the Boazanian army are ready to attack Terra Erthu with their newest beast fighter, Gardo. Will they successfully conquer the planet this time?

Voltes V will be in a precarious situation because of the unique strength and skill of the new Boazanian beast fighter, Gardo. Will this be Zardoz's key to conquering Terra Erthu?

Will Steve still have time to learn the butterfly return technique to fight Gardo before it penetrates Camp Big Falcon.

Jamie suspects that Eva is plotting something against their back.

Jamie's life will be in danger because an unknown person will attempt to take her life. Will they be able to identify the culprit?