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Cleo, Emma and Rikki get stranded on Mako island and fall into a magic pool where their lives change forever.
Emma competes in a contest, Cleo is stuck babysitting an intern and save an injured sea turtle.
The girls discover of an ancient mermaid statue and return it but treasure hunters have another idea.
A storm threatens to wash out a birthday party.
Zane's father plans a luxury resort on Mako Island.
Aggressive blue seaweed attacks Emma.
Discarded plastic bags pose a threat to Teddy and his friends.
Atmospheric disturbances result in disastrous consequences.
Dolphin City is the location for a new movie.
Danny gets captured by the Oceanic Center for observation.
Lewis and the girls must find what's behind mysterious sound waves that are creating havoc.
Berk breaks a tooth and wanders near the beach in pain, causing a panic.
Rikki takes matters into her own hands by spying on her dad and his new girlfriend.
