Part of a movie-length, four-episode storyline. As with The Treasure of the Golden Suns movie-length event that launched the series, principal antagonists include both Flintheart Glomgold and the Beagle Boys.
Huey, Dewey. and Louie do not appear in this episode.
Moral: You shouldn't underestimate your friends, as everyone one of them has talents that can be important.
While the series frequently referenced real or mythological history, it rarely provided a socially- or environmentally-conscious message, unlike many of its cartoon competitors at the time. This episode is a departure from this trend, as it explored the dangers and effects of polluting the oceans.