H2O: Just Add Water - Season 1 Episode 5 Something Fishy
Cleo's sister Kim finds her diary and thinks that Cleo and her friends are 'evil mermaids' and she plans to tell everyone. Meanwhile, Lewis goes to Mako Island to find out more about what happened to the girls.
- Genre: Drama, Family, Sci-Fi & Fantasy
- Studio: Network Ten
- Keyword: mermaid, supernatural, teen drama
- Cast: Phoebe Tonkin, Cariba Heine, Indiana Evans, Luke Mitchell, Burgess Abernethy