Posnack School - Hochberg Lower School Presents Disney's Little Mermaid Jr.! Journey "under the sea" with Ariel and her aquatic friends in Disney's The Little Mermaid JR. In a magical underwater kingdom, the beautiful young mermaid, Ariel, longs to leave her ocean home ? and her fins ? behind and live in the world above. But first, she'll have to defy her father, King Triton, make a deal with the evil sea witch, Ursula, and convince the handsome Prince Eric that she's the girl whose enchanting voice he's been seeking.