Mako: Island of Secrets (2013)

S1E15 Sirena's Secret

In "Sirena's Secret," the bond between David and Sirena deepens, but Nixie and Lyla are increasingly concerned that Sirena may choose to stay on land instead of returning to their underwater world. As their friendship evolves, the stakes rise for Sirena, who must navigate her feelings and the expectations of her mermaid friends. Tensions mount as Nixie and Lyla fear losing their companion to a life above the waves, prompting them to confront the implications of Sirena's choices.