It's one year since the girls became mermaids and Cleo decides to organise a special party just for them but when Zane and Ash clash at the juice bar, Rikki and Emma take their boyfriend's side in the argument. Soon Emma and Rikki aren't talking to each other. No matter what Cleo tries, the friendship is still strained.
Ash keeps trying to ask Emma out but she won't hear of it - it's a full moon tonight. Cleo and Rikki goad Ash into being bold with Emma - but they don't count on him turning up at Emma's place in time for the full moon! Ash organises a romantic dinner just for him and Emma.
Liam's dad, a farmer, has ploughed up an old skeleton of a wolfblood in mid-transformation – and Liam is boasting about his ancestor being a werewolf hunter. Our Wolfbloods go to investigate. Jana is livid, telling tells the others they have a duty to give it the traditional wolfblood burial.
Maddy finds a strange girl stealing her school clothes from the washing line. The thief turns on Maddy. It's a wolfblood! Maddy gives chase but Rhydian stops her, recognising the girl as Jana, daughter of Alric. Maddy is shocked to see Jana arrive at school the next day with her uniform on, greeting Rhydian like a long lost “friend”.
Kuru reports to Omar and the council of elders about Vashan's hostile intrusion in the other world, but they can't counter a royal. Meanwhile Vashan has used the magical gem again, and using a box and carpet can prevent being sent back.
The gang decide not to let BRANDON know about the toy lighthouse until they know more about it.
The quest to save Lars from Ragnar gets even more complicated as Alisa discovers that Dracula has Nicu. Now she has to save both boys. In the prison of eternal light Ivy is told that Alisa needs to take a different path…
Joe, who delivers seafood to the Ocean Café, has a new boat and takes his brother DAVID out for a spin. His fish-finder locates a dolphin, but it's not like any dolphin he's seen before.
Relentless rain keeps the mermaids indoors and unable to look for Zac. Lyla and Sirena try to use the Moon Ring to stop the rain.
While Nixie and Sirena discover shopping, Lyla looks for Zac at The Ocean Café. When a waitress accidentally spills a drink on Lyla, she rushes to the cool room.
Lewis searches through a research folder on mermaids given to him by Max, somewhere in the research lies a clue to how all this happened. Charlotte becomes jealous of how much time Lewis is spending with his ex-girlfriend Cleo. When Charlotte visits Cleo, she sees a picture of Gracie on the wall and recognises her as her grandmother!
Lewis continues to search for clues to the magical effects of the moon pool. He discovers someone called Max Hamilton did research fifty years ago on the strange properties of Mako Island. Lewis tracks the old man down. Max is cagey and plays a cat and mouse game with Lewis. But it becomes clear the old guy knows a lot more about mermaids than Lewis first thought.
It's one year since the girls became mermaids and Cleo decides to organise a special party just for them but when Zane and Ash clash at the juice bar, Rikki and Emma take their boyfriend's side in the argument. Soon Emma and Rikki aren't talking to each other. No matter what Cleo tries, the friendship is still strained.
Ash keeps trying to ask Emma out but she won't hear of it - it's a full moon tonight. Cleo and Rikki goad Ash into being bold with Emma - but they don't count on him turning up at Emma's place in time for the full moon! Ash organises a romantic dinner just for him and Emma.
Sammy returns home for his Grandpa Morrie's funeral and to ask his father to support his Academy tuition. While an act of sabotage severs frenemies Tara and Abigail and Kat auditions for the Moulin Rouge.
Exams are over and, with one night of freedom, both the boys and the girls go on a mission to prove they'll have more fun without each other.
Rhydian unexpectedly returns on the night of the full moon, chased by wild wolfbloods as Tom discovers Shannon spying on the Smiths with a surveillance camera hidden in the Den. Maddy's overjoyed to have Rhydian back and persuades her parents to help him re-adjust back to life in Stoneybridge.
Shannon is worried about the wolves and their safety now people know they exist, they may be hunted. She plans to inform the Department of the Environment so they can protect the wolves, but first needs proof that the wolves exist and she knows how to get it - Carl's wolfbait! Maddy and Rhydian are worried, they have to get the bait before Shannon gets her hands on it.
The band bunch prepares for the school's masked dance, an concept unknown to Kuru. JB was turned down by 48 girls, so he's desperate to ask Kosma on the Manjipoor market and tricks Alex to take him there, supposedly looking for her perfect dress, behind Kuru's back.
LUCA is finally letting his guard down with KIKI again – and soon they're back to their old friendship.