The lives of teenagers Emma, Cleo and Rikki are forever changed when a magical, forbidden island gives them the power to turn into mermaids.
H2O: Mermaid Adventures (Season 1)
The Secret of Mako Island (Episode 1)
Air date: 2015-06-01
Runtime: 24 min
Overview: Cleo, Emma and Rikki get stranded on Mako island and fall into a magic pool where their lives change forever.
Caught in the Net (Episode 2)
Air date: 2015-06-02
Runtime: 24 min
Overview: Emma competes in a contest, Cleo is stuck babysitting an intern and save an injured sea turtle.
The White Mermaid (Episode 3)
Air date: 2015-06-03
Runtime: 24 min
Overview: The girls discover of an ancient mermaid statue and return it but treasure hunters have another idea.
A Stormy Party (Episode 4)
Air date: 2015-06-04
Runtime: 24 min
Overview: A storm threatens to wash out a birthday party.
Mako Island Hotel (Episode 5)
Air date: 2015-06-05
Runtime: 24 min
Overview: Zane's father plans a luxury resort on Mako Island.
The Mysterious Seaweed (Episode 6)
Air date: 2015-06-06
Runtime: 24 min
Overview: Aggressive blue seaweed attacks Emma.
It's in the Bag! (Episode 7)
Air date: 2015-06-07
Runtime: 24 min
Overview: Discarded plastic bags pose a threat to Teddy and his friends.
Dolphin City Triangle (Episode 8)
Air date: 2015-06-08
Runtime: 24 min
Overview: Atmospheric disturbances result in disastrous consequences.
Poseidon's Daughter (Episode 9)
Air date: 2015-06-09
Runtime: 24 min
Overview: Dolphin City is the location for a new movie.
Dolphin City Mascot (Episode 10)
Air date: 2015-06-10
Runtime: 24 min
Overview: Danny gets captured by the Oceanic Center for observation.
Bad Waves (Episode 11)
Air date: 2015-06-11
Runtime: 24 min
Overview: Lewis and the girls must find what's behind mysterious sound waves that are creating havoc.
Jaw-ache! (Episode 12)
Air date: 2015-06-12
Runtime: 24 min
Overview: Berk breaks a tooth and wanders near the beach in pain, causing a panic.
The Lost Ring (Episode 13)
Air date: 2015-06-13
Runtime: 24 min
Overview: Rikki takes matters into her own hands by spying on her dad and his new girlfriend.
