H2O: Emma, Cleo and Rikki are sixteen year old girls growing up on the sun-drenched beaches of the Gold Coast in Australia. The girls find themselves stranded at sea one day, floating towards the mysterious Mako Island. The three girls find themselves exploring the eerie jungle-covered island before becoming trapped in an ancient cavern under a volcano. Discovering an underwater channel, they decide to swim to safety. As they enter the pool, the light from a full moon…