Sophie and Ryan damage the Moon Pool in their efforts to obtain the rare crystals. The girls improvise and use their own magic to prevent the impact of the comet.
Cleo discovers a comet is causing fish to flee the waters around Mako Island. The girls find a way to restart the message in the Moon Pool and discover the comet will collide with earth.
Don gets a second job at the Marine Park on the Pirate ship and outshines Cleo, threatening the future of her Dolphin show.
Bella's eager to ask Will to the end of year party until she sees him asking Rikki. A big misunderstanding occurs which prompts Will to express his true feelings for Bella.
The end of year performance of the Nutcracker at the Opera House has finally arrived and Tara continues to perform her role so badly that it seems Abigail will be re-cast in her place.
Rehearsals for The Nutcracker are underway. Tara is playing the role of Clara and quickly discovers that being the star is not all its cracked up to be as Abigail's claws re-emerge.
Jana and TJ are forced to find Carrie to avoid their secret being exposed.
When TJ falls for a human he's in danger of breaking more than his heart.
A remark at mother's day from her sanctimonious sister Zoe that Alex is adopted makes her wonder about her magical biological mother, queen Nefari. After Kuru says Omar knew her best, she travels to Manjipoor alone to question him. Vashan spies on them and magically set a trap, entering the queen's magical posthumous vision.
KIKI and ZOEY are anxious – with no reply from Lumina and LUCA knowing who they are, they're no longer safe in Lightning Point.
Alisa needs both Nicu and Lars to get to know the Redmasks' plans. The other heirs train to form a strong front. It takes the clan leaders some time to get used to this new status quo on the ship. It takes the support of the Conte to convince the other clan leaders to do it their way. Nicu has to come face to face with his greatest nightmare. The race to the Knot is on.
Fearing they'll never get the pod to return to Mako, a despondent Nixie finds herself at odds with Lyla and Sirena. Seeking solitude, she meets Ben, a young boy.
KIKI and ZOEY are anxious – with no reply from Lumina and LUCA knowing who they are, they're no longer safe in Lightning Point.
Alisa needs both Nicu and Lars to get to know the Redmasks' plans. The other heirs train to form a strong front. It takes the clan leaders some time to get used to this new status quo on the ship. It takes the support of the Conte to convince the other clan leaders to do it their way. Nicu has to come face to face with his greatest nightmare. The race to the Knot is on.
Fearing they'll never get the pod to return to Mako, a despondent Nixie finds herself at odds with Lyla and Sirena. Seeking solitude, she meets Ben, a young boy.
Against Nixie and Sirena's advice, Lyla helps Zac get to the Moon Pool. But when the Moon Pool entrance suddenly closes Lyla and Zac are trapped inside!
While listening to Sirena sing, Lyla has an idea. If Sirena sings the Enchantment Song to Zac, he'll fall under her spell and they'll have the chance to take his powers.
Sophie and Ryan damage the Moon Pool in their efforts to obtain the rare crystals. The girls improvise and use their own magic to prevent the impact of the comet.
Cleo discovers a comet is causing fish to flee the waters around Mako Island. The girls find a way to restart the message in the Moon Pool and discover the comet will collide with earth.
Don gets a second job at the Marine Park on the Pirate ship and outshines Cleo, threatening the future of her Dolphin show.