Taiyo Sentai Sun Vulcan is the fifth series in Toei Company’s Super Sentai franchise. It was broadcast from February 7, 1981 to January 30, 1982 (50 episodes) and is the only Super Sentai series to serve as a direct sequel to its previous series (Denshi Sentai Denziman) and the only all-male Super Sentai team. Its international English title as listed by Toei is simply Sun Vulcan.
The threat of the Machine Empire Black Magma causes the United Nations to establish the Solar Sentai at a summit. From the UN’s Guardians of World Peace’s (GWP) air force, navy, and rangers, Commander Arashiyama assembles three specialists to become Sun Vulcan. Learning of this, Black Magma attacks the GWP’s base, but Sun Vulcan debuts in time to save it. Hell Saturn prays to the Black Solar God and is rewarded with a revived Queen Hedrian, now a cyborg with a mechanical heart and a metallic afro. But plot after plot of Black Magma, even with Hedrian’s aid, fails. Following the death of 01, Amazon Killer, a Vader, arrives from space, destroying the Sun Vulcan Base. A new Vulcan Base is built.