Ariel, mermaid wamng'ono komanso wokongola wazaka khumi ndi zisanu ndi chimodzi, mfumukazi ya ufumu wa Atlantica, sakukhutira ndi moyo wake wapansi pa madzi ndipo amachita chidwi ndi dziko laumunthu.

Ndi bwenzi lake lapamtima la nsomba, amatolera zinthu zapadziko lapansi ndipo nthawi zambiri amapita kumtunda kukacheza ndi seagull.

Amanyalanyaza machenjezo a abambo ake, a King Triton, wolamulira wa Atlantica, ndi Sebastian, nkhanu yemwenso ndi mlangizi komanso wotsogolera mfumu, omwe amamuuza kuti kulumikizana pakati pa anthu ndi anthu am'nyanja ndikoletsedwa.