Taiyo Sentai Sun Vulcan (太陽戦隊サンバルカン Taiyō Sentai San Barukan?, [Note 1]) is the fifth season in Toei Company's Super Sentai tokusatsu television series. It was broadcast from February 7, 1981 to January 30, 1982 and is the only Super Sentai series to serve as a direct sequel to its previous series (Denshi Sentai Denziman). 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.