H2O: Mermaid Adventures - Season 1

When Cleo, Emma and Rikki get stranded overnight on Mako Island, a magic pool changes the girls' lives forever.

While Emma competes in a sand castle contest, Cleo must babysit a high-maintenance intern and save an injured sea turtle.

The girls discover a mysterious and ancient mermaid statue and want to return it to an underwater wreck, but treasure hunters have other ideas.

When a storm threatens to wash out a yacht-based birthday party, Emma and the girls must save the day -- and the birthday boy.

Zane's father plans a luxury resort on Mako Island -- so the girls swim into action to save their beloved retreat from ruin.

An aggressive blue seaweed attacks Emma, reversing her mermaid powers and forcing her friends to come to the rescue.

When discarded plastic bags pose a threat to Teddy and his sea turtle friends, Lewis and the girls must take extreme measures to stop the menace.

An atmospheric disturbance results in some disastrous consequences in Dolphin City, which is now labeled as the new Bermuda Triangle.

Dolphin City is the location for a Hollywood movie, bringing big stars to town and causing star-crossed trouble under the sea.

When Danny the octopus gets captured by the Oceanic Center for observation, it causes problems with his friends and the volleyball tournament.

Lewis and the girls must find what's behind mysterious sound waves that create havoc with the whales, dolphins -- and mermaids -- of Dolphin Bay.

When Burke the shark breaks a tooth and wanders near the beach in pain, he causes a panic in Dolphin City that threatens tourist season.

After spying on her father and worrying that he might be making a big mistake with his new girlfriend, Rikki takes matters into her own hands.