List of H2O: Just Add Water episodes
The following is an episode list for the Australian television show H2O: Just Add Water, which first aired on Network Ten in Australia and has since been broadcast in more than 120 countries worldwide. Series one premiered in Australia on 7 July 2006 and series two began there on 28 September 2007. The third series premiered in the United Kingdom on 26 October 2009 while its Australian premiere occurred on 22 May 2010.
Emma Gilbert (Claire Holt), Cleo Sertori (Phoebe Tonkin) and Rikki Chadwick (Cariba Heine) are three teenage girls who become stranded on the mysterious Mako Island. When they enter an underground pool of water that leads to the ocean they find themselves bathed in the glow of moonlight from overhead. After being rescued the girls return to their normal lives but soon discover they have changed: seconds after contact with water they transform into mermaids. After further experimentation, they discover they also have unique supernatural powers over water. Emma can freeze water, Cleo can control the shape and volume of water, and Rikki can boil water. The girls enlist Cleo's long-time friend Lewis McCartney (Angus McLaren) to try to determine why this has happened to them and help them keep their new identity a secret. The series focuses on the girls dealing with everyday teen problems while trying to cope with their newfound abilities.
The first series features a single primary storyline with three main elements. The girls meet Louise Chatham (Christine Amor), an older woman who reveals that she too was once a mermaid. She helps the girls understand their own situation and warns them of the dangers involved. After a confrontation with Ms. Chatham, Zane Bennett (Burgess Abernethy) gets trapped on her sinking houseboat which forces Emma to rush to his aid. During the rescue, Zane catches a glimpse of her tail and becomes obsessed with finding this "sea monster". Doctor Denman (Lara Cox), a marine biologist, also becomes focused on the mermaids when Lewis accidentally leaves behind a genetic sample of the girls he was working on in her lab. Zane later helps her to capture the girls, unaware of their true identities. When he realises what he has done, Zane works with Lewis to free the girls who trick the scientists into believing they have given up their powers during a lunar eclipse. In reality, they were only temporarily removed of their powers.
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