In season 2 she decides to do something about Zac. Meanwhile, Joe informs the marine park of the dragon he saw last night. Lyla is the rebel mermaid. When Zac suggests using Sirena's moon ring to simulate a full moon to find out, he has a vision in which he glimpses a place on Mako Island never seen before. The chamber drains the magic from the moon pool and slowly begins to kill the mermaids except Evie.
They lure Zac into a trap and use the potion on him when he's in the moon pool during a full moon. When Cam hears of this, he angrily confronts Zac. Sirena, Lyla, and Nixie volunteer to work at the party to keep a close watch on him. Nixie, however, refuses to trust Zac after all the trouble he caused them, causing a rift between herself and the others. Mimmi and Ondina eventually reverse the spell and return Weilan and Zac to normal. Zac witnesses the whole scene and becomes angry that the girls have wrecked the audition and, in the process, destroyed a figurine he gave to Evie as an anniversary gift. They escape when Joe and David unwittingly distract the dragon with their boat.
In the process, Mimmi and Rita are splashed and Zac and Evie are forced to drag them to safety. When Zac experiments with a stone carving in the chamber, Ondina suddenly disappears. When Weilan takes the box to school, their science teacher gets too close to it and is also sucked in. Afterwards, Zac and the girls admit the truth about their identities to Evie. The two play an ancient mermaid game to see who was taught their powers better. Rita eventually remembers the final ingredient and the girls are able to complete the reversal spell to restore Rita to her normal age.
While Cam runs off with the trident, Zac, Lyla, and Sirena arrive on the island, having discovered what Nixie and Cam are up to. She has feelings for David and she is Evie's best friend. When Zac enters the code into the chamber, it seemingly recreates the trident. Their worries are proven correct when the water soon begins to have unpredictable effects. Due to Weilan's sassy attitude, Ondina immediately dislikes her while Mimmi shows Weilan around and introduces her to their friends. Rita talks to Zac about the trident, telling him its more than just a weapon and that he must return it to Mako Island. But who is this mermaid? Please by removing unnecessary details and making it more concise.
The moon also causes Mimmi to have a vision of Zac on Mako Island. She's friends with Mimmi and she decides to do something about Zac in season 2. The gang then returns to the party to enjoy themselves. They and Rita are approached by Veridia, the head of the mermaid council. Zac finally realises how dangerous the trident truly is and returns it to its resting place on Mako Island, ending his feud with the mermaids. On 8 May 2012, Shiff Productions announced the principal cast and the start of the shoot.
In the process, Cam and Nixie grow closer together. Weilan and Ondina get Chris and Mimmi to come to the party in an attempt to bring them back together. Meanwhile, Zac also realises what Cam is up to and heads to Mako as well. Meanwhile, Sirena begins giving Evie lessons on how to use her powers. To give themselves some closure, Zac and Mimmi hold a memorial service in Nerissa's honour. But Mimmi has nothing to prove this.
She also helps them fix the boy, which the girls discover that his name is. When three of the cats wander off, the girls must find them, figure out which cat is Erik, and reverse the spell before Erik permanently becomes a cat. When they arrive at the building where they can admire Rikki's articfats, the girls see a dragon bracelet and realise that it could be the bracelet they need to destroy the dragon. That night, Sirena enchants David with the song and takes him to the Moon Pool to make him her man. To make matters worse, Chris and Karl are sent to observe some sea turtles on Mako Island, right where Ondina and Weilan are teaching their class. Mimmi and Evie manage to calm him down before he goes too far by reminding him that, unlike Mimmi, he has two parents who love him. That's because the second season had two parts.
Zac Blakely Chai Romruen is actually a man and 15 years old. Ondina and Mimmi are both afraid that is a threat to mermaid pods everywhere. Evie overhears this and is greatly touched. Meanwhile, Rita's cat, Poseidon, becomes magically enchanted after stepping through a puddle of spilled potion. On 8 May 2012, Shiff Productions announced the principal cast and the start of the shoot.
But she discovers that there are two merman: Zac and Erik. Shiff, in association with Nickelodeon. He even gets an relationship with Carly, a waitress at the Juice Café. The three mermaids are broken, but decide to solve the problem by taking the boy's powers away. It's an Chinese mermaid trick to defend themselves.
Mimmi swims to Mako and Zac hears about what happened. Carly witnesses one of the sneezes and becomes suspicious that Evie is hiding something from her. Unfortunately, Evie decides to join the pod in the fight and she enlists Carly to perform the same task as Cam. Since the land entrance to the Moon Pool only opens during a full moon, Lyla also suggests using Sirena's Moon Ring to open the land entrance, but Sirena and Nixie refuse. He and Sirena become mutual love interests.