H2O: Mermaid Adventures

Season 2

TV-Y7

When three normal teenage girls stumble upon an ancient cave they undergo a transformation that will change their lives forever.

Where to Watch H2O: Mermaid Adventures • Season 2

13 Episodes

Reported Missing
E1
Reported MissingIn the Season 2 opener, clown fish begin to vanish, so the girls investigate why this is happening.
Memory Lapsse
E2
Memory Lapsse
Valentine's Day
E3
Valentine's DayLewis wants to share a big secret with Abby on Valentine's Day, and Cleo worries that he will tell her about the girls' mermaid identities.
Kidnapped!
E4
Kidnapped!Bobby's twin brother gets abducted by someone in a curious speedboat.
A Strange Phenomenon
E5
A Strange PhenomenonIn her sleep Cleo creates huge spheres of water that float through the air in Dolphin City, causing chaos. This strange phenomenon is caused by her worries about her Dad, who is on a mission out at sea. And what if Cleo's worries are real? What if her Dad really has fallen into the hands of dangerous outlaws involved in illegal fishing?
Handle with Care
E6
Handle with CareTired of the racket Miriam and Zane are making at their beach party, Bernie leaves his cave -- giving the Vandals a chance to move right in.
The Return of the White Mermaid
E7
The Return of the White MermaidThe White Mermaid is in danger! Her sanctuary, the sunken galleon of Edward the Cruel, is about to be discovered by Stanley Finch, the famous explorer. The girls decide to stop him, and make his boat take another course, towards the sinister underwater stone circle. Stanley dives to have a look, but when he comes back, he is completely transformed: talking like a pirate of the high seas, he believes he is Edward the Cruel himself!
Three Days Underwater
E8
Three Days UnderwaterAfter being carried by a current into the underwater stone circle, Rikki is victim of a terrible spell: she cannot turn back into a human! To break the spell, she has to wait for the full moon - in three days' time! Three days, during which Rikki has to live underwater 24 hours a day, with the fish! Meanwhile her Dad is convinced she has run away and is getting more and more worried.
Robot Duel
E9
Robot DuelLewis is thrilled when the university hosts an underwater robot competition, but the girls fret over the safety of their marine friends.
The Creature from the Bay
E10
The Creature from the BayEmma's younger brother catches a glimpse of her mermaid tail and thinks he's seen a sea monster -- soon the whole town is in an uproar.
Underwater Takeover
E11
Underwater TakeoverThe mermaids turn to a cranky giant octopus for help when the Vandals invade the bay with a horde of stinging jellyfish.
Imminent Danger
E12
Imminent DangerHaving played one too many practical jokes, Teddy can't get anyone to believe his warning that an underwater volcano is about to erupt.
Trapped
E13
TrappedLewis joins a famous explorer in a high-tech submarine to hunt for a sunken treasure ship, but a mishap strands them at the bottom of the sea.