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26 Episodes 2006 - 2006
Episode 1
Fri, Jul 7, 2006 25 mins
Three teens are turned into mermaids after finding a magical cave under a volcano. The girls revert to human form out of the water, and strive to keep their secret while using their powers to fight crime.
Episode 2
Fri, Jul 14, 2006 25 mins
The girls attend a pool party hosted by Miriam and try to stay out of the water, but Cleo is tossed into the pool and needs help from Lewis to get out. Meanwhile, Rikki discovers she can boil water at will.
Episode 3
Fri, Jul 21, 2006 25 mins
The girls must rescue turtles from a fishing net, but Cleo, who is still afraid of the water, ends up getting snared herself.
Episode 4
Fri, Jul 28, 2006 25 mins
Cleo's diary ends up in the hands of her sister Kim, who almost discovers the girls' mermaid secret. Meanwhile, Lewis researches the trio's powers to find out how they were transformed.
Episode 5
Fri, Aug 4, 2006 25 mins
Cleo gets a job at the marine park, where she is saved by a mysterious old woman after she's splashed; Emma finds a necklace in the Moon Pool; and Cleo must hide at Emma's party after morphing into a mermaid.
Episode 6
Fri, Aug 11, 2006 25 mins
Elliot falls for Rikki when she saves him from drowning. But Rikki harshly turns him down and Elliot responds by running away. She finds him hiding in a plant nursery, where they both get locked in just as the sprinkler system is about to start up.
Episode 7
Fri, Aug 18, 2006 25 mins
Emma is affected by the full moon despite a warning from Miss Chatham, and she makes a spectacle of herself at her father's birthday party. The others manage to get her under control, but not until after she kisses Byron in the moonlight.
Episode 8
Fri, Aug 25, 2006 25 mins
Lewis' research into the girls' mermaid powers is threatened by an attractive marine biologist who charms him into trusting her.
Episode 9
Fri, Sep 1, 2006 25 mins
Rikki is offered a lot of money for a fish she caught, leading her to a fish-smuggling operation.
Episode 10
Fri, Sep 8, 2006 25 mins
A moviemaking contest prompts Zane to film himself trying to break a windsurfing record, but he falls off the board and into shark-infested waters. Meanwhile, Emma attempts to shoot a movie of her own, but no one wants to help.
Episode 11
Fri, Sep 15, 2006 25 mins
Emma trains Byron for a swimming competition, but her tough approach prompts him to fire her as his coach. Meanwhile, Rikki plays pranks on Lewis in hopes of making him lose his temper.
Episode 12
Fri, Sep 22, 2006 25 mins
The full moon transforms Cleo into an alluring siren.
Episode 13
Fri, Sep 29, 2006 25 mins
The old woman's houseboat is deemed unsafe, so Emma invites her into her home. Later, Zane becomes trapped on the sinking vessel and catches a glimpse of Emma's tail when she tries to rescue him.
Episode 14
Fri, Oct 6, 2006 25 mins
Zane asks Lewis to help him find a sea monster, and he nearly sees Cleo on Mako Island, where she is hiding from the embarrassing birthday party her father organized.
Episode 15
Fri, Oct 13, 2006 25 mins
Emma is left in charge of the juice bar and accidentally freezes Miriam in the cool room. The gang then races to devise a plan to thaw her out.
Episode 16
Fri, Oct 20, 2006 25 mins
A rumor starts that Cleo has a boyfriend, so Don and Lewis team up to find out who it is.
Episode 17
Fri, Oct 27, 2006 25 mins
The girls feign illnesses to avoid going to school in a rainstorm, but their fake symptoms are so convincing that the doctor has them quarantined.
Episode 18
Fri, Nov 3, 2006 25 mins
Rikki boils everything dry when the full moon makes her zany. Later, she kisses Zane on Mako Island.
Episode 19
Fri, Nov 10, 2006 25 mins
Cleo's feud with little sister Kim intensifies when their cousin Angela visits.
Episode 20
Fri, Nov 17, 2006 25 mins
Lewis is accused of cheating in a fishing contest after he receives some secret mermaid help landing a large fish. Elsewhere, Zane and Rikki argue after getting trapped on a hotel balcony.
Episode 21
Fri, Nov 24, 2006 25 mins
Emma dyes her hair red. Meanwhile, Zane thinks Miss Chatham knows how to find the sea monster and heads to her sunken boat, where he sees a mermaid.
Episode 22
Fri, Dec 1, 2006 25 mins
Rikki must choose between her friends and Zane, but his opinion on the fate of Mako Island makes her decision much less difficult.
Episode 23
Fri, Dec 8, 2006 25 mins
Miriam tosses a necklace similar to Miss Chatham's into the water, and Rikki must decide if retrieving it is worth revealing her powers to Zane.
Episode 24
Fri, Dec 15, 2006 25 mins
The school dance exposes the trio's boy problems. Meanwhile, Lewis thinks he has found a way to control their mermaid powers.
Episode 25
Fri, Dec 22, 2006 25 mins
Dr. Denman returns and discovers the girls' secret when Zane unwittingly leads her to Mako Island.
Episode 26
Fri, Dec 29, 2006 25 mins
The trio consider giving up their powers during the lunar eclipse to avoid being hunted by Dr. Denman.