After Sofia helps a little mermaid named Oona, Sofia's amulet grants her the power to transform into a mermaid and visit her new friend's underwater kingdom. But when Cedric (disguised as a seamonster) plots to steal Oona's enchanted Mermaid Comb, danger surfaces for both worlds. With a little help from special guest, Princess Ariel, Sofia embarks on an adventure to rescue Oona and prevent a typhoon before it's too late.
Kiernan Shipka
Oona (voice)Ariel Winter
Sofia (voice)Jim Cummings
Wormwood (voice)Jeff Bennett
Farley (voice)Darcy Rose Byrnes
Amber (voice)Wayne Brady
Clover (voice)Jodi Benson
Ariel (voice)Phil Morris
Plank (voice)