Unable to convince Emma to tell Ash the truth about herself, Rikki and Cleo encourage Ash to make a bold, romantic gesture to her. But he musters his courage at exactly the wrong time, when he cooks Emma a surprise dinner at her home on the night of a full moon. By leaving the front door open, he doesn't realise the chaos he is about to cause, when Cleo accidentally looks up at the moon. The mischievous, moonstruck Cleo then forces Rikki to see the full moon, and the two of them plot to get Emma wet, so that Ash can see her in mermaid form. However, Lewis shows up, preventing Ash from seeing Emma as a mermaid.