Season 3 opens with Cleo and Rikki dealing with the loss of Emma who is travelling the world with her family. A strange creature made entirely of water forms and attacks Will. It then races to the cafe and kidnaps Rikki, dragging her back to Mako Island.
H2O Just Add Water - Season 1 Episode 1
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H2O Just Add Water - Season 1 Episode 2
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H2O Just Add Water - Season 1 Episode 3
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H2O Just Add Water - Season 1 Episode04: Party Girls
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H2O Just Add Water - Season 1 Episode05: Something Fishy
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H2O Just Add Water - Season 1 Episode06: Young Love
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H2O Just Add Water - Season 1 Episode07: Moon Spell
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H2O Just Add Water - Season 1 Episode08: The Denman Affair
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H2O Just Add Water - Season 1 Episode09: Dangerous Waters
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H2O Just Add Water - Season 1 Episode10: The Camera Never Lies
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H2O Just Add Water - Season 1 Episode11: Sink or Swim
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H2O Just Add Water - Season 1 Episode12: The Siren Effect
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H2O Just Add Water - Season 1 Episode13: Shipwrecked
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H2O Just Add Water - Season 1 Episode14: Surprise!
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H2O Just Add Water - Season 1 Episode15: The Big Chill
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H2O Just Add Water - Season 1 Episode16: Lovesick
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H2O Just Add Water - Season 1 Episode17: Under the Weather
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H2O Just Add Water - Season 1 Episode18: Bad Moon Rising
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H2O Just Add Water - Season 1 Episode19: Hurricane Angela
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H2O Just Add Water - Season 1 Episode20: Hook, Line and Sinker
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H2O Just Add Water - Season 1 Episode21: Red Herring
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H2O Just Add Water - Season 1 Episode22: Fish Out of Water
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H2O Just Add Water - Season 1 Episode23: In Too Deep
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H2O Just Add Water - Season 1 Episode24: Love Potion #9
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H2O Just Add Water - Season 1 Episode25: Dr Danger
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H2O Just Add Water - Season 1 Episode26: A Twist in the Tail
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H2O Just Add Water - Season 2 Episode 01: Stormy Weather
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H2O Just Add Water - Season 2 Episode 02: Control
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H2O Just Add Water - Season 2 Episode 03: The One That Got Away
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H2O Just Add Water - Season 2 Episode 04: Fire and Ice
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H2O Just Add Water - Season 2 Episode 05: Hocus Pocus
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H2O Just Add Water - Season 2 Episode 06: Pressure Cooker
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H2O Just Add Water - Season 2 Episode 07: In Hot Water
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H2O Just Add Water - Season 2 Episode 08: Wrong Side of the Tracks
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H2O Just Add Water - Season 2 Episode 09: Riding for a Fall
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H2O Just Add Water - Season 2 Episode 10: Missed the Boat
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H2O Just Add Water - Season 2 Episode 11: In Over Our Heads
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H2O Just Add Water - Season 2 Episode 12: Fish Fever
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H2O Just Add Water - Season 2 Episode 13: Moonwalker
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H2O Just Add Water - Season 2 Episode 14: Get Off My Tail
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H2O Just Add Water - Season 2 Episode 15: Irresistible
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H2O Just Add Water - Season 2 Episode 16: Double Trouble
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H2O Just Add Water - Season 2 Episode 17: Moonstruck
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H2O Just Add Water - Season 2 Episode 18: The Heat Is On
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H2O Just Add Water - Season 2 Episode 19: The Gracie Code, Pt
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H2O Just Add Water - Season 2 Episode 20: The Gracie Code
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H2O Just Add Water - Season 2 Episode 21: And Then There Were Four
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H2O Just Add Water - Season 2 Episode 22: Bubble Bubble Toil and Trouble
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H2O Just Add Water - Season 2 Episode 23: Reckless
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H2O Just Add Water - Season 2 Episode 24: Three's Company
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H2O Just Add Water - Season 2 Episode 25: Sea Change
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H2O Just Add Water - Season 2 Episode 26: Unfathomable
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H2O Just Add Water - Season 3 Episode 01: The Awakening
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H2O Just Add Water - Season 3 Episode 02: Jungle Hunt
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H2O Just Add Water - Season 3 Episode 03: Keep Your Enemies Close
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H2O Just Add Water - Season 3 Episode 04: Valentine's Day
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H2O Just Add Water - Season 3 Episode 05: Big Ideas
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H2O Just Add Water - Season 3 Episode 06: Secrets & Lies
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H2O Just Add Water - Season 3 Episode 07: Happy Families
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H2O Just Add Water - Season 3 Episode 08: Kidnapped
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H2O Just Add Water - Season 3 Episode 09: The Sorcerer's Apprentice
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H2O Just Add Water - Season 3 Episode 10: Revealed
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H2O Just Add Water - Season 3 Episode 11: Just A Girl At Heart
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H2O Just Add Water - Season 3 Episode 12: Crime & Punishment
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H2O Just Add Water - Season 3 Episode 13: To Have & To Hold Back
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H2O Just Add Water - Season 3 Episode 14: Mermaid Magic
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H2O Just Add Water - Season 3 Episode 15: Power Play
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H2O Just Add Water - Season 3 Episode 16: The Dark Side
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H2O Just Add Water - Season 3 Episode 17: A Magnetic Attraction
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H2O Just Add Water - Season 3 Episode 18: Into The Light
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H2O Just Add Water - Season 3 Episode 19: Breakaway
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H2O Just Add Water - Season 3 Episode 20: Queen For A Day
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H2O Just Add Water - Season 3 Episode 21: The Jewel Thief
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H2O Just Add Water - Season 3 Episode 22: Mako Masters
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H2O Just Add Water - Season 3 Episode 23: Beach Party
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H2O Just Add Water - Season 3 Episode 24: Too Close For Comfort
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