Ep 1. Metamorphosis

Emma, Cleo, and Rikki, three teenage girls in the Australian town of Gold Coast, sneak out to a beach party at night and they find themselves resurfacing under a pool on the mysterious Mako Island. The next day, they discover that their lives have changed forever: whenever they touch water, they transform into mermaids and have magical powers.

At first, the girls are shocked and scared of what has happened to them. Unsure of how to control their powers, they fear that they may hurt those around them. But as they learn to embrace their new abilities, they also discover the responsibility that comes with being a mermaid. They also realize that they must keep their newfound powers a secret, or risk being exposed to the world.

In Metamorphosis, the first episode of the series, we see how the girls adjust to their new lives as mermaids. Emma, the responsible and practical one of the group, is the first to discover her powers when she jumps into the ocean to save Rikki, who is struggling to stay afloat. Cleo, the shy and cautious member of the trio, discovers her powers accidentally when her pet fish goes missing and she dives into the aquarium to search for it. And Rikki, the bold and daring leader of the group, learns of her powers when the girls visit Mako Island for a midnight swim.

As the girls grapple with their transformations, they encounter a new set of challenges. Emma worries about how her new powers will affect her swimming career, while Cleo struggles to keep her powers a secret from her overbearing father. Rikki, on the other hand, is more concerned with having fun and using her powers to her advantage.

Throughout the episode, we see the girls learning to work together as a team and relying on each other for support. They quickly realize that they need to keep their secret from everyone, including their families and friends, and agree to meet up at Mako Island whenever they need to transform. But as they become more confident in their abilities, they also become more reckless, and their secret is almost exposed when they accidentally reveal their powers to a group of boys at the beach.

The episode ends with the girls sitting on the beach at sunset, reflecting on the events of the day. They know that their lives will never be the same again and that they must navigate the challenges of being mermaids while also balancing their ordinary lives. But they also know that they have each other, and that together they can overcome any obstacle.

Overall, Metamorphosis is a thrilling and captivating introduction to the world of H2O. The characters are well-developed and relatable, and the concept of mermaids with magical powers adds an exciting twist to the coming-of-age genre. It sets the stage for an exciting journey filled with adventure, romance, and self-discovery.