Ep 5. Something Fishy

Three teenage girls, Cleo, Emma, and Rikki, are still adjusting to their newfound mermaid powers in the small beach town of Gold Coast, Australia. In H2O season 1 episode 5, "Something Fishy," the girls must deal with conflicting feelings as they try to balance both their human and mermaid lives.

Emma's father, who has been traveling for work, returns home and surprises her with a visit. However, Emma's excitement is short-lived when she discovers that her father's company is planning to build a research center on Mako Island, the place where the girls first transformed into mermaids. Emma is determined to fight against the construction, fearing that their secret will be discovered and their powers will be used for evil.

Meanwhile, Cleo discovers a small fish in a pet store that bears an uncanny resemblance to her mermaid form. She becomes convinced that the fish is somehow related to her and steals it before realizing that it belongs to the store owner's daughter. When the owner accuses Cleo of theft, Rikki and Emma intervene to help clear her name.

As the girls try to navigate these new challenges, they are also faced with the ongoing struggle of keeping their powers a secret. When their friend Lewis discovers that there is something fishy going on with the girls, they must come up with a plan to keep him from discovering the truth.

As the episode progresses, the girls find themselves working together to solve their respective problems. They realize that having each other to lean on is the key to keeping their mermaid identities hidden while also managing their human lives.

Overall, "Something Fishy" is a fun and engaging episode that highlights the complexities of growing up and the challenges of balancing multiple identities. It also sets the stage for future conflicts as the girls continue to navigate their powers and the mysterious forces at work on Mako Island.