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The Australian television series H20: Just Add Water debuted in July 2006. The show will appeal to children and young adults as it tells the story of three best friends who become mermaids after becoming stranded on Mako Island. The girls jump into a magical pool, which is underneath a dormant volcano. When the full moon drifts over the pool, the girls become the magical creatures. After their rescue, the girls are unaware of the change until they come into contact with water. Once water touches them, they quickly turn into mermaids.

The three friends are Emma, Rikki and Cleo. The girls are 16 years old and live in Australia. After they turn into magical mermaids, they realize that water related situations have become challenging such as taking a bath, participating in pool parties or facing a rainy day.

The girls soon discover that they have new water related powers along with their fins. Rikki can manipulate the heat within water. For example, she can make it warm up or even boil. Later, during the series, she gains power over fire and lightning. Emma has the power to freeze water, and her abilities develop into control over snow, clouds and ice. Cleo

Friday 4:00 PM et/pt on Nickelodeon
3 Seasons, 91 Episodes - Canceled
July 7, 2006
Drama
7.2/10
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H2O Full Episode Guide

  • 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 and a planet wide catastrophe. Rikki, Cleo and Bella graduate with a surprise.

  • 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 and a planet wide catastrophe. Rikki, Cleo and Bella graduate with a surprise.

  • 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. Sophie meets Ryan and with Zane's help they join forces to remove the crystals from the Moon Pool.

  • Don gets a second job at the Marine Park on the Pirate ship and outshines Cleo, threatening the future of her Dolphin show. Bella and Will find difficulty trying to connect with each others' interests.

  • 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. Sophie tries to get Zane to change the name of the cafe.

  • The girls sit their final school exams and have to avoid a water attack in public when the full moon rises early. They confront the water force in the Moon Pool and are given a message about Mako Island.

  • The girls discover the Mako crystals contain immense energy and need to mount a rescue mission when Zane jealously steals one in an effort to gain Rikki"s attention.

  • Zane installs Sophie as head of staff at the cafe. Bella develops a sneezing allergy that also accidentally triggers her powers. Sophie seizes on the problem and looks to fire Bella and the band.

  • Will competes in the Free-Diving Championships but afterward chooses to break from the sport and shrug off Sophie's influence on his life. Rikki sees Sophie kissing Zane at the event and breaks off their relationship.

  • Will competes in the Free-Diving Championships but afterward chooses to break from the sport and shrug off Sophie's influence on his life. Rikki sees Sophie kissing Zane at the event and breaks off their relationship.

  • Rikki fears Ryan's explorations on Mako Island will uncover their secrets but Cleo and Bella discount her concern. She almost goes too far trying to stop Ryan from discovering the crystals in the Moon Pool.

  • Cleo's introduced to Ryan, a young geophysicist who's working for Samantha. Rikki doesn't react well to Cleo consulting Ryan about the Mako rock and a fracture begins to appear in the trio.

  • Rikki's frustrated by the water attacks and goes to Mako Island on a full moon to confront the strange force in the Moon Pool. With Cleo and Bella delayed, Will pursues her and discovers she's been affected by the experience.

  • Sophie uses Bella"s idea for a fundraising concert and presents it as her own to Rikki to gain publicity for the cafe. Cleo's caught in the crossfire with Kim when Samantha moves in and puts her stamp on the Sertori home.

  • Will pushes himself too far when Zane challenges him to prove his skills as a free-diver. The girls discover a unique crystal in the rock from the Moon Pool.

  • Kim attempts to derail Don and Samantha's wedding. Lewis receives an opportunity to study in America. Cleo realises she's got to let Lewis live his own life and let him go overseas.

  • Rikki receives counterfeit money at the cafe and is held captive by criminals on a boat. Bella and Cleo are forced to reveal the trio's secret to Will so they can rescue Rikki together.

  • Bella helps Will with his free-diving training but when she realises he's more interested in her as a mermaid than a girl, she's hurt. Rikki and Cleo have to improvise when the cafe's first corporate function is actually a children"s party.

  • Bella's warned to back off from Will as he's on the trail of the girls' mermaid secrets. She gets too close to him and he finally discovers she's a mermaid.

  • Cleo defies Lewis' advice and experiments with the magic Moon Pool water. Using her powers, Rikki accidentally gets the water into Cleo's aquarium and all the girls have to rescue Cleo's fish Hector.

  • Rikki and Bella hide out at Cleo's to protect themselves from a full moon water attack. Bella's kidnapped by a water tentacle and taken to Mako Island. Lewis tries to keep Will away from the island so the girls can rescue her.

  • A problematic family beach picnic leads Don to end his relationship with Samantha until Cleo encourages him to pursue it. Will's sister Sophie competes with Bella for a job at the cafe and sets her sights on Zane.

  • Zane concocts a dirt bike race to publicise the cafe. When Rikki discovers it's a scam she and Bella decide to teach him and Nate a lesson. Cleo and Lewis make a big discovery about mixing the waters in the Moon Pool.

  • Cleo's forced to put Lewis' plans for romance on hold to restrain Kim's out of control love life. During this Don meets Samantha, a National Parks Manager and they start to date.

  • Cleo seeks a new job as an assistant dolphin trainer at the Marine Park. Rikki fires Nate's band from playing at the cafe until she and Bella reach an understanding.

  • Will seeks confirmation of his first experience on Mako Island. Bella volunteers to misdirect his search so he won"t find the Moon Pool. The girls and Lewis discover the Moon Pool has changed.

  • Cleo and Rikki face their final year of high school without Emma. They make a new friend in Bella and meet new boy Will - and encounter a strange new force on Mako Island that turns water against them.

  • The full moon rises, and with the planets lining up, it can remove mermaid powers for good. Knowing this, Lewis lures Charlotte to the moon pool but it backfires and Emma, Cleo and Rikki could lose their powers.

  • Cleo is bullied by Charlotte and runs away to the ocean. With Cleo missing, everyone becomes more and more worried. Lewis discovers what Charlotte has been up to and breaks up with her. He finds Cleo and they kiss.

  • Cleo is bullied by Charlotte and runs away to the ocean. With Cleo missing, everyone becomes more and more worried. Lewis discovers what Charlotte has been up to and breaks up with her. He finds Cleo and they kiss.

  • Charlotte takes over and organizes a surprise party for Lewis, annoying Rikki. At the party, Charlotte is jealous of Cleo and traps her and Emma in a pool room. Rikki comes back just in time.

  • As the girls continue to have problems accommodating Charlotte as a mermaid, Nate bullies Lewis. Despite the girls' attempts to keep Charlotte under control, she uses her powers on Nate and almost exposes them all.

  • The girls have to deal with a fourth mermaid who turns out to be a loose cannon; Charlotte almost turns into a mermaid at a volleyball competition. Charlotte discovers she has all three mermaid superpowers. Ominous signs.

  • Charlotte follows Lewis to Max Hamilton. Max tells all to Charlotte when he discovers she's the granddaughter of his one true love. Charlotte and Lewis almost break up until she goes to the moonpool, becoming a mermaid herself!

  • Ash comes close to finding out about Emma. Meanwhile, the girls discover that Charlotte's grandmother was Gracie. Old wounds open up for Charlotte and she finds part of Max's research: an old movie of Gracie ' as a mermaid!

  • Lewis discovers someone called Max Hamilton did research fifty years ago on the strange properties of Mako Island. Lewis tracks the old man down and finds that he knows a lot more about mermaids than Lewis first thought.

  • When Zane and Ash clash at the juice bar, Rikki and Emma take their boyfriend's sides. Cleo is left alone celebrating their one year anniversary of becoming a mermaid ' until Lewis arrives just in time to help.

  • Cleo and Rikki push Ash into asking Emma out again ' little did they know he'd turn up at Emma's place in time for a full moon! Rikki and Cleo are both moonstruck and Ash looks set to discover Emma's secret.

  • Lewis has a bad dream about mermaids being discovered. It threatens to come true when Elliot asks Kim out on a date to the marine park and Cleo finds herself in trouble underwater in front of a crowd of people.

  • Lewis and Zane find an old myth about mermaids is true ' the scent of ambergris sends them wild. But it backfires when sleazy Nate gets hold of the scent and has all three mermaid girls on his arm!

  • Emma thinks she's going to get a promotion at the juice bar but Ash is given the job. Emma and Ash clash over the job, but we discover it's over a lot more. Meanwhile, Lewis stands up to Charlotte over spending time with Cleo.

  • Don takes the family camping on Mako Island during a Full Moon. The girls are affected and need the moon pool for sanctuary. Charlotte almost slips in the moon pool and realises something weird is going on there.

  • Don takes the family camping on Mako Island during a Full Moon. The girls are affected and need the moon pool for sanctuary.

  • Emma starts acting weird after pricking her finger on a barb of coral. Cleo's fish Hector exhibits the same behaviour. Emma becomes more and more like a fish and Lewis has to find a way to cure her.

  • Emma starts acting weird after pricking her finger on a barb of coral. Emma becomes more and more like a fish and Lewis has to find a way to cure her.

  • Zane hears of a treasure under the ocean and enlists the girls to find it. Rikki is injured in the search.

  • Cleo is failing at school and is assigned a tutor - Charlotte. Cleo wants Lewis back but her attitude to Charlotte only drives him further away.

  • Emma meets Ash - a handsome horse riding instructor. A horse falls ill and Emma must use her powers to fix it.

  • Zane has an argument with a man in a trailer park but little does he know it's Rikki's dad.

  • A mermaid prank gone wrong leads to a dolphin going missing at the Marine Park and Lewis has to take the fall to protect the girls.

  • Don appears to have a girlfriend - Cleo is shocked to find it is Charlotte's mother.

  • Lewis finds an old book on mermaids and tests out a potion recipe on the girls.

  • Rikki comes to stay at Emma's house and stirs up the family unit. In trying to compete with Rikki, Emma tries to rebel and throws a party. Nate uses Lewis to make a play for Cleo.

  • Zane's back in town and still in love with Rikki. Cleo becomes suspicious of Lewis spending time with Charlotte.

  • Emma uses her new powers to help Elliott win at soccer. Lewis decides to test the girls' increased powers. Cleo has had enough of Lewis' smothering and dumps him. Lewis meets Charlotte and they bond.

  • Lewis decides to test the girls' increased powers. Cleo has had enough of Lewis' smothering and dumps him.

  • Under the influence of a Full Moon the girls' powers are hugely enhanced and they wreak havoc on Lewis in his boat. The next day the girls realize they still need Lewis.

Most Popular H2O Episodes

  • Season 3 Episode 26 Graduation 4/16/2010
  • Season 3 Episode 12 Crime & Punishment 1/19/2010

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