Real-life mermaids, Sirena, Nixie and Lyla are part of a mermaid pod, which lives in the waters of Mako Island. As young members of the pod, it is their job to protect the Moon Pool and guard it from trespassers. But on the night of a full moon, the mischievous mermaid girls neglect their duties. Sixteen-year-old land-dweller Zac enters the Moon Pool and forms a special connection with Mako. Zac is given a fish-like tail and amazing powers. The mermaid pod is forced to leave Mako, leaving behind the three mermaid girls, cast out of the pod. They know there's only one way they will be allowed to rejoin the pod: They must get legs, venture onto land and take back Zac's powers – or risk being outcasts forever.
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see all options Availability data: JustWatch
- Seasons
- 3
- Episodes aired
- 68
- Latest aired
- S03E16
- Total runtime
- 1d 3h
Timeline when each season aired
- Season 1 July 2013 – January 2014 26 episodes
- Season 2 February 2015 – August 2015 26 episodes
- Season 3 May 2016 – August 2016 16 episodes
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S02E01 The Seventh Cycle
February 15 · 24min find the promo
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When the pod decides Zac is a threat and must give up his merman powers, two new mermaids, Mimmi and Ondina, are sent to make sure he obeys.
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S02E02 Sticky Situation
February 22 · 24min find the promo
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With Evie now a mermaid, Mimmi and Ondina try a dangerous spell to change her back to a human form, but the results are less than ideal.
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S02E03 Discovery
March 1 · 24min find the promo
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When Zac has a powerful vision about his connection to Mako Island, he and the mermaids visit the island to investigate.
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S02E04 A New Tail
March 8 · 24min find the promo
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Erik's curiosity about the girls and Mako Island becomes a problem when he decides to investigate further.
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S02E05 Bad For Business
March 15 · 24min find the promo
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When Evie's dad decides to take tourists on dive charters to Mako Island, the gang must find a way to change his mind.
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S02E06 Stormy Seas
March 22 · 24min find the promo
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Sirena gives Evie mermaid lessons, which rubs Ondina the wrong way, while Erik tries to get to the bottom of Zac and Cam's falling out.
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S02E07 Awakening
March 29 · 24min find the promo
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With the full moon approaching, Zac's plan to avoid Mako Island is dealt a blow when his father insists they go on their annual camping trip.
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S02E08 Land School
April 5 · 24min find the promo
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When Mimmi goes to the first day of the new school year, things get out of hand fast when she runs afoul of the science teacher.
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S02E09 Stowaway
April 12 · 24min find the promo
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When a young mermaid follows Ondina back to Mako Island after a mermaid council meeting, it could spell trouble with the pod.
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S02E10 Keeping The Secret
April 19 · 24min find the promo
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When David sees Evie in the water as a mermaid, it puts Zac and the girls' secret at risk unless they can convince David he's wrong.
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S02E11 Only As Young As You Feel
April 26 · 24min find the promo
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Ondina adds too much jellyfish extract to Mimmi's body lotion, and the results put Principal Santos in dangerous waters at the marine park.
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S02E12 Supersized
May 3 · 24min find the promo
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When Mimmi loses her moon ring in the Ocean Café's cooler room, it creates havoc for David and his brother's business.
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S02E13 Reunion
May 10 · 24min find the promo
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On the night of the full moon, Zac and Erik swim to Mako Island and unlock the merman chamber, revealing a startling secret.
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S02E14 A New Man
May 17 · 24min find the promo
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Zac struggles to come to terms with the news that he's a real merman, he's adopted and Mimmi is his sister.
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S02E15 Careful What You Wish For
May 24 · 24min find the promo
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After Cam absorbs moon pool water, he discovers he has power over water, which gets him a place in the trials for the school swim team.
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S02E16 First Date
May 31 · 24min find the promo
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Ondina sneaks Erik into the grotto to duplicate a pearl he gave her, but she accidentally turns him into a copy of Poseidon.
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S02E17 The Merman Code
June 7 · 24min find the promo
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When Erik dives down and touches one of the rock outcrops on Mako reef, he's transported into a sphere of endless water with no way out.
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S02E18 The Siren
June 14 · 24min find the promo
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When Sirena sees a video that shows a kayaker being lured by a mermaid's song, she starts to follow David obsessively, and he falls under her spell.
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S02E19 Surprise!
June 21 · 24min find the promo
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A surprise birthday party is in the works for Evie, who accidentally shrinks herself and falls into an aquarium after trying on Mimmi's mood ring.
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S02E20 The Job
June 28 · 24min find the promo
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Mimmi takes a job at the marine park, where she meets Chris, a young man who is desperate to get into a dolphin training program.
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S02E21 New Orders
July 5 · 24min find the promo
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On the night of the full moon, Zac and Ondina sneak away to Mako, and Ondina reveals her plan to destroy the chamber.
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S02E22 The Last Dance
July 12 · 24min find the promo
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Ondina doesn't want to choose between Erik and the pod when the pod returns. To cheer her up, Erik decides to throw a party in the café.
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S02E23 Stay or Go
July 19 · 24min find the promo
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At the marine park, Ondina and Mimmi get into trouble when a dolphin splashes them and a little girl sees them transform into mermaids.
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S02E24 The Truth About Evie
July 26 · 24min find the promo
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When Evie comes down with a fever that causes the temperature in the room to soar, Carly suspects that her friend is keeping a secret from her.
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S02E25 The Trident Stone
August 2 · 24min find the promo
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When Erik learns that the trident stone is the missing element needed to activate the merman chamber, Zac gives it to the mermaids for safekeeping.
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S02E26 The Chosen One
August 9 · 24min find the promo
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The chamber's true purpose is revealed: to drain the magic from all mermaids. Zac risks his life to shut it down and restore the mermaids' magic.