An armada of horned humanoid aliens known as Boazanians invade earth and launch their "beast fighters" all over the world, defeating most of the world's armed forces including the US military. Their first humiliating defeat by Super Electromagnetic Machine, Voltes V brings the invaders to focus their attacks on Japan. Voltes V was designed by Professor Kentaro Gō (Doctor Ned Armstrong), his wife Professor Mitsuyo Gō (Doctor Mary Ann Armstrong) and their trusted colleague, Professor Hamaguchi (Doctor Richard Smith) and built by large scale construction effort backed by United Nations Earth Defense Force and General Oka (Commander Robinson). Voltes V is a robot composed of five "Volt Machines", and each are themselves formidable weapons. Each machine is piloted by Ken'ichi(Steve), Daijiro(Big Bert), and Hiyoshi(Little John): the three sons of Kentaro and Mitsuyo Gō, along with the only daughter of General Oka; Megumi(Jaime Robinson), and Ippei Mine(Mark Gordon), an orphan cowboy.