Ariel lives under the sea with her friend Flounder. Her father is the King Triton who rules the ocean with Sebastian. She has six sisters.
Ariel adores the life of an human but she doesn't know what their possessions are. She goes to ask Scuttle, and her father finds out and forbids her from going back to the surface.
Bur she didn't care and snuck up to the surface anyway to save Prince Eric from dying after a shipwreck, but she ends up falling in love with him.
Ariel goes to Ursula to become human. Ursula gives her a potion , however she must do one thing. She must kiss Prince Eric within three days and she would be human forever. If she fails to do so she will remain a mermaid and her soul would belong to Ursula. Also she must complete this task without her voice. She agrees.
Prince Eric does not see the potential in Ariel and seeks another women., however the time is up with Ursula and she comes to collect Ariel. King Triton begs her to take him instead of her. She agrees, but before the King could give of his throne, Ariel, Flounder, and Sebastian come to his rescue.
They all work to together to defeat Ursula. Prince Eric falls in love with Ariel, they get married and live happily ever after.