So, this is the place that turned you into a fish.
A mermaid, Lewis.
Yeah, that's what I meant.
I don't know, I just expected something a little more Club Med.
See that volcano?
- The caves are up there. What? Way up there?
I want to find out how this happened. It takes hard work, Lewis. Come on.
The entrance is down there near the waterfall.
- I can't get any closer or I'll— - I know. The whole beached whale thing.
- Mermaid, Lewis. - Yes, that is what I meant.
So, how do you get in?
Swim. There's an underwater entrance.
Swim?
So the hike was optional? I could've swum?
Fifty meters? Without coming up for air?
Right. Point taken. Air is good.
Anyway, it's better that I discover the pool the same way you did.
It's much more scientific that way.
- Just be careful that you don't fall— - Emma, please.
I am a scientist, and I know exactly what I'm doing.
Oh! Whoa!
I'll meet you down there.
Oh,
wow.
Pretty cool, huh?
So, where do we start?
First, I'd like to map the space.
Then get some rock and water samples for testing.
Something in this environment triggered your transformation.
If I can figure out what that something was,
I can figure out how you got your tail.
And then start asking why.
The Miss Sea Queen Pageant?
How sexist can you get? What kind of a moron would enter something like this?
You're not thinking of entering Miss Sea Queen Pageant?
I'd rather drop dead.
You're just jealous because I'm entering.
Oh, and if you're thinking of entering, Cleo, a word of advice:
don't bother.
That's two.
And Cleo wouldn't be interested
in prancing across a stage in a clingy dress.
It's a costume, actually.
With a sea motif.
I've always had an affinity with the sea.
You? That's a joke. I'm the one with the affinity.
I'm a… Ow.
Mum! Have you seen Cleo?
- I think she went out. - She's never here anymore.
She'd make time if you wanted to play.
Play with her? No way. I just wanted to borrow a belt.
"My Secret Life."
This is weird.
Give me your most expensive low-fat ice… cream.
Oh, it's you.
- Flavors? - Oh, you choose.
I'm feeling… spontaneous.
And ultra confident.
I've finished the preparations for the competition.
- I have a costume that's to die for. - To die for.
And I've seen the list of contestants. Not on my level.
What about Tiffany?
Oh, yeah, you'll get runner-up.
But the rest, wallflowers.
Kind of like you.
Hi, Cleo, darling. We're short-staffed for the Miss Sea Queen pageant.
Can you do nine to four?
Actually, I can't work that day.
I'd like to help, but…
I've decided to enter the pageant.
Oh, lovely.
Mum, do you think Cleo's been acting a bit different lately?
Like… Like she might be in some kind of cult or something?
Do you even know what a cult is, Kim?
No. But I do know that it makes people do weird things.
Good, Mum, glad you're home.
This doesn't involve you, Kim. So scram.
Mum, you know how you always wanted to teach me to sew?
Well, now would be a really good time. Like not right now,
I've got fish that need me, but later on.
Why are you always shutting your door?
To keep you out. Did I say "come in"?
Well, why do you need to keep me out?
Because you're annoying.
Goodbye.
- What did you do with your fish?
They're in the… bath.
How did you do that?
There's nothing in the bath.
Did I say bath? I meant bucket.
What are you reading?
Something for school.
Must be good.
It's very educational.
It's only water, darling.
Oh.
I came to see Elliot.
What for?
To tell you something.
I'm just gonna go clean my room.
We'll come and help you.
Here, read this. Cleo's diary.
I'm not reading someone else's diary.
- It's for your own protection. - It's private.
Listen. I have reason to believe that my sister, your sister,
and possibly Rikki are mermaids.
Read it.
It's in code.
So? It's all there.
It doesn't make any sense.
But look at this. And this. And this.
They're mermaids.
They could just be doodles.
- I like to doodle. - Elliot!
I saw Cleo in our bathroom. With a tail.
I know it might sound crazy,
but if I'm right, they even have weird powers over water.
Don't mind me. I'm just getting a drink.
She's a freak. What's she going to drink, huh?
It can't be water. She can't touch the stuff.
- You were saying? - She's smart.
She drinks out of a bottle, with a straw, so she doesn't get water on her skin.
You should leave now.
You have got to believe me.
See, that's the thing. I don't.
But listen, please…
See you at school.
Elliot, if you don't open your eyes and wake up to what is going on,
you are going to be their first victim.
See you at school.
Elliot, hurry up!
I'll be out in a minute.
You've been in there for 20 minutes. There'll be no hot water left!
- Hey! Ow!
Ow, ow, ow!
Kim?
You were right. About everything.
One minute, I'm having a normal shower and the next thing I know, it's hailing.
OK, calm down. We have to figure out how to handle this properly.
- Maybe we should talk to them. - Talk? Are you insane?
Well, I was taught to resolve conflict with communication.
Communication is for humans.
They're not human. They're like… witches.
Vampires.
They can't be reasoned with. They have to be stopped.
How?
They take their true form when they're wet.
I say we expose them.
Hey, what ya doing?
Mmm, nothing.
What are you doing?
Just reading.
Can I offer you some water?
No, thanks.
I'm happy to share.
I'm not thirsty.
In fact, I share everything with you.
Because you're my sister.
And all I get in return is secrets and lies.
What lies?
Why didn't you tell me you were a mermaid?
Why would you think I was a mermaid?
Are you crazy?
You wrote a diary?
Just a little one.
With every little detail about our "mermaidness"?
I'd never let anyone see it.
It's gone.
I found the diary. It was under Kim's pillow.
Look who's here.
- I'm gonna maim her. - Just ignore them.
They're all here. Did you bring the gear?
- They're not gonna let this go. - Then we've gotta do something about it.
Um, Lewis?
Wait!
Lewis is one of them too.
I can't see Lewis as a mermaid.
No, you dork. He'd be a merman.
Like a boy-mermaid.
Just sit tight.
- How much do they know? - Pretty much everything.
Do you wanna hear something hilarious?
Mm-hmm.
Cleo entered Miss Sea Queen.
Imagine trying to pull a costume together overnight?
So that's what they're stressing about.
Best idea? We need to put them off the scent.
Get them thinking that the diary is about someone else.
Like who?
Hey, Miriam?
More of them? This is bigger than I thought.
Why are you talking to me?
You never talk to me.
That's silly, Miriam. We like you.
Don't think I don't know you've entered the contest, Cleo. I know everything.
You do?
Oh, OK. Good.
It's a whole coven of mermaid creatures. We can't fight them here.
That Cleo, she's got something up her sleeve.
I'm not sure what.
Mermaids?
Your idea is way better.
Shut up, Tiffany. Come on.
Of course. It all makes sense now.
Miriam's the leader.
- You think so? - Miriam's always the leader.
I need to pull a new costume together overnight.
It's big, but I can do it.
Hey, how are you going? I was just wondering…
She's putting him under her spell.
Cool. These will go great with my new outfit.
What are they?
Accessories.
You're Cleo's little sister, aren't you?
I know what you're up to.
You are not getting my secret.
So stop spying on me, or you'll get it.
Understand?
Wow, Miriam. You can be really scary.
It's a pageant, Tiffany. You can't take prisoners.
To make this work, we've gotta make it look
like Miriam's the one with the powers.
Yeah, well, anyways…
- Ready? - Please, allow me.
Now do you believe me?
Tomorrow Miriam and my freak sister
are both going to be at the Miss Sea Queen Pageant.
Here, at the Marine Park.
Perfect time to expose them.
We'll bring down the leader, they'll follow.
- I'm scared. - That's exactly what they want, Elliot.
Now listen carefully. You will be here, next to this fire hose, backstage.
I'll be here, directly behind the stage.
On my signal, you will turn on the fire hydrant
and angle it over this wall.
The water will hit the stage, turning Miriam and Cleo into mermaids,
and us into heroes.
Any questions?
No.
You have to be brave, Elliot.
I know. I know.
Remember, the only ones with anything to fear are the mermaids.
Next up, we have Libby Mclntyre
as a starfish.
Oh, Libby, this reminds me of a wonderful costume that I made when I was your age.
Who are these people?
Rikki, at least pretend you're having fun.
But I'm not.
And what a beautiful starfish she is.
On my mark.
Now our next jewel of the sea is Cleo Sertori.
Um, and, er, Cleo has chosen to come dressed as a…
What is she?
Give us a hint?
I'm a Portuguese man-of-war.
- Um… - It's a jellyfish.
Oh.
Last, but by no means least,
please give a very warm welcome to Miriam Kent.
Oh, Miriam's a mermaid.
I might need this bucket to vomit in.
You were supposed to be a mermaid.
No, I wasn't.
Miriam, you look absolutely wonderful. Tell me, did you make this yourself?
All the sequins and beading are handmade.
They're all handmade, isn't that wonderful?
- And that's all our contestants… - Go, Elliot! Now!
Our judges have to come up with the winner
very, very soon.
Hold tight, everyone.
My costume!
I'm so wet.
Oh!
Oh.
I knew it.
There are mermaids on the Gold Coast.
And she is their evil leader. My sister is one of them too!
She made me do it.
They're evil. And dangerous. Look!
- Get away from me!
- It's real! - Finally, something interesting.
Get away from me. Get away!
- What are you doing? - Why is your tail tearing?
Because it's a costume, you moron!
Just you wait. Oh!
I'm gonna get you. Come here! Come here!
Get away!
Ah! Ah!
Well? Any help here?
Tiffany? Tiffany? Tiffany, dear? Congratulations, you won.
Me? Oh, thank you.
Kim?
I know you stole my diary. Is that where you got all those crazy ideas from?
Dad says I'm not allowed to talk to anyone.
Kim, that diary was an English assignment.
We had to re-write fairy tales.
I chose The Little Mermaid, it's fiction.
But what about your tail? You had one at home, I saw it.
Er, that was my first attempt at a costume but I couldn't wear it because it shrunk.
And the fish tank?
Like I told you, the fish were in the bucket.
I'm such an idiot. As if you could ever be a mermaid.
You can't even swim.
The story is I've tested everything,
the water, the rocks, the soil, the lichen, even the dust.
And what did you find?
Everything's normal.
So that's it? You're done?
Hey, I am putting in one hundred percent.
So, Cleo, what did you do with the diary?
Don't worry. I took care of it. No one's going to find it ever again.