[No.] 27 [Title] "Cavey and the Volcanic Villain" [Original airdate] 22 March 1980 [Synopsis] 
In Hawaii, a marriage between two lovers from two families who had been enemies for many years is threatened when a sacred pearl disappears. Captain Caveman and the Teen Angels, who are friends with the bride, investigate. Taffy and Cavey check the cave in the volcano while Dee Dee and Brenda question one of the rival patriarchs. They soon discover that the pearl was never stolen, but was hidden in the statue that was holding it by the groom's jealous brother.