The Little Mermaid (1992)

S1E4 Stormy

Title: Stormy Plot: Ariel dreams of riding a fierce seahorse named Stormy, but her father forbids it. Undeterred, she secretly slips away from home and embarks on an adventure, mounting Stormy in the open sea. As they race through the waves, Ariel discovers the thrill of freedom and the bond between them grows stronger, despite her father's wishes.