The Mysterious Cities of Gold Season 1 Episode 7 Secret of the Solaris ( Air Date 1982-08-24 ) Genre Kids, Animation, Action & Adventure, Sci-Fi & Fantasy category. Overview "Gomez' Spanish galleon overtakes and attacks the Solaris, the sun-powered ship on which the children are travelling. They manage to outrun the Spanish ship when Tao discovers a wonderful secret solar power boost, just in time. At last, they reach the new continent.".