Trident True

"Trident True" is the thirteenth episode of The Little Mermaid TV series, originally aired on November 28, 1992.

Synopsis
Ariel looks for the perfect Father's Day gift to give King Triton, but it leads her to misfortune, when a giant octopus traps them in a cave, forcing Urchin to try and steal the trident so he can save the day.