The Little Mermaid (1992)

S01E01 Eel-Ectric City

Ariel's friend Pearl visits and invites her to Eeel-Ectric City, but Triton disapproves. To get around his objections, Pearl fabricates a story about a slumber party. The two sneak off to the city, but their fun is interrupted by a fierce storm that reveals their secret to Triton.