The Little Mermaid: Thingamajigger

When he throws his back out at Ariel's party, King Triton begins feelings old and out-of-touch. Hoping to help him feel better, Ariel allows the Glo-fish to give her father a 'youth stone.' Little does Ariel know that Glo-fish has an ulterior motive: he would be able to steal all the jewels once the youth stone turns King Triton into a young boy! Full of energy and mischief, young Triton, now known as 'red,' is off to adventures. Roles suddenly reversed, Ariel realizes it's not easy being a parent.