This was the final cartoon the "Popeye 75th Anniversary Celebration Collector's Edition" DVD package which had 85 episodes in it. Not all of them are listed here on IMDb. Anyway, I had mixed reactions because I've always liked Popeye, but many of these 1960-1961 made-for- TV cartoons were lame and made for the intelligence of three-to-eight-year-old children.
This "finale" was an old-fashioned story, the kind Popeye liked to tell Swee Pea. Here, the king's gold is stolen off his boat and the princess Olive is asked to find it by locating "the seven Swee Peas" and having them solve the case.
After rescuing Olive, who almost drowns trying to find the little ones, the seven Swee Peas head out on their mission. The Sea Hag, of course, is behind the robbery. At least in this "adventure story," the Hag has a clever plan to beat her foes, a lot more intelligent than the usual story.