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26 Episodes 2009 - 2010
Episode 1
Mon, Oct 26, 2009 25 mins
Cleo and Rikki enter their final year of high school in the wake of Emma's departure, and they befriend Bella and Will.
Episode 2
Sun, Feb 6, 2011 25 mins
Bella tries to prevent Will from discovering the Moon Pool; a change occurs in the Moon Pool.
Episode 3
Sun, Feb 20, 2011 25 mins
Cleo wants to work with dolphins; Rikki bars Nate's band from the café while she sorts things out with Bella.
Episode 4
Sun, Feb 27, 2011 25 mins
Cleo prioritizes her sister's love life over her own; Cleo's dad starts a new romance.
Episode 5
Fri, Oct 30, 2009 25 mins
Rikki uncovers a con Zane is planning; Cleo and Lewis learn something new about the Moon Pool water.
Episode 6
Mon, Nov 2, 2009 25 mins
Bella makes a move with Will, and then backs off when it appears he's not single; Lewis' science teacher becomes interested in the Moon Pool water.
Episode 7
Tue, Nov 3, 2009 25 mins
Family complications lead Don to break up with Samantha, but Cleo suggests he reconsider this; Bella and Will's sister apply for the same job at the café.
Episode 8
Wed, Nov 4, 2009 25 mins
A water tentacle captures Bella, and the girls set out to save her while Lewis distracts Will.
Episode 9
Thu, Nov 5, 2009 25 mins
Despite Lewis' warnings, Cleo plays with the magic water. Meanwhile, Rikki accidentally endangers Cleo's fish.
Episode 10
Fri, Nov 6, 2009 25 mins
Bella's advised to keep her distance from Will as he gets closer to uncovering the mermaid secret.
Episode 11
Mon, Jan 18, 2010 25 mins
Bella assists Will with his diving techniques; Rikki and Cleo host a children's party at the café.
Episode 12
Tue, Jan 19, 2010 25 mins
A group of felons take Rikki hostage on a boat, and Bella and Cleo reveal a major secret to Will so that he will help save her.
Episode 13
Thu, Jan 21, 2010 25 mins
Kim tries to halt Don's marriage to Samantha. Meanwhile, Lewis gets a chance to study abroad, and Cleo knows she can't stand in his way.
Episode 14
Mon, Feb 22, 2010 25 mins
Will exerts himself while trying to impress Zane with his diving abilities. Elsewhere, the girls find an unusual crystal in the rock from the Moon Pool.
Episode 15
Tue, Feb 23, 2010 25 mins
Sophie steals Bella's fund-raising idea. Elsewhere, Samantha moves into the Sertori home, where Kim struggles to accept her presence.
Episode 16
Wed, Feb 24, 2010 25 mins
Rikki confronts the bizarre force in the Moon Pool, and the encounter changes her.
Episode 17
Thu, Feb 25, 2010 25 mins
Cleo meets a geophysicist named Ryan and discusses the Mako rock with him, much to Rikki's chagrin.
Episode 18
Mon, Apr 12, 2010 25 mins
Rikki worries about Ryan touring Mako Island, and she goes to great lengths to stop him.
Episode 19
Tue, Apr 13, 2010 25 mins
Will cuts ties with Sophie and walks away from free diving. Meanwhile, Rikki spots Sophie kissing Zane.
Episode 20
Tue, Apr 13, 2010 25 mins
Sophie is put in charge of the café, so she tries to fire Bella after Bella's new sneezing allergy accidentally activates her powers.
Episode 21
Wed, Apr 14, 2010 25 mins
The girls try to retrieve a Mako crystal from Zane, who snatched it to attract Rikki's attention.
Episode 22
Wed, Apr 14, 2010 25 mins
The full moon rises early, forcing the girls to be careful about avoiding exposure. The girls then head to the Moon Pool and receive a message about Mako Island.
Episode 23
Thu, Apr 15, 2010 25 mins
A misunderstanding leads Will to be honest with Bella. Elsewhere, Sophie pressures Zane to change the café's name.
Episode 24
Thu, Apr 15, 2010 25 mins
Don begins working at the marine park and upstages Cleo, putting her dolphin show in jeopardy. Elsewhere, Bella and Will struggle to enjoy one another's hobbies.
Episode 25
Fri, Apr 16, 2010 25 mins
The girls uncover some unsettling news at the Mako Pool regarding a comet.
Episode 26
Fri, Apr 16, 2010 25 mins
After the Moon Pool gets damaged, the girls resort to using their own magic to save Earth from a destructive comet.