If you're gonna start a fight...
I don't want to fight.
Still sore from round one?
I was out of line.
I just...
didn't like seeing those girls push you around.
Putting the trident back was my choice.
I'm sorry, man.
So how are things?
Been better.
I had this dream last night
about the trident and the moon pool.
It really freaked me out.
Don't you get it?
You dreamed of the legend.
It's telling you to get in the moon pool
on the full moon with the trident.
When the trident was sending out energy,
it felt alive.
I couldn't control it if I wanted to.
Maybe it just takes practice to control it,
like with your other powers.
What if I can't ever control it?
You're stronger now, that won't happen.
This is the opportunity of a lifetime.
Okay. A million lifetimes. You can't pass it up.
Zac, if I could get my hands on a trident,
you wouldn't have to ask me twice.
No.
It's too risky.
Okay.
It's your call.
Want a drink?
Yeah.
Hey.
You look exhausted. What's up?
Didn't get much sleep last night. Bad dream.
What was it about?
Talk to me, Zac.
Whatever it is, you know you can trust me.
It all started the weekend Cam and I went camping on Mako—
Hey, Evie, you got a sec?
It's a supplier.
Can you deal with it, please?
Don't worry about it.
Zac? Just leave it, okay?
I almost told Evie I was a merman.
I couldn't help it.
I can't keep lying to her.
Well, not telling the exact truth
isn't the same as just lying.
It's tearing me up. I have to tell her.
Zac, we understand how hard this is,
but you have to keep the secret until after the full moon.
Look, once you're back to being a normal boy,
you don't have to lie anymore.
You said you weren't even sure if you could change me back.
What if you can't?
You can join our pod.
Lyla, he's a land boy. He doesn't belong in our pod.
Nixie.
Look, this is a stressful time for all of us,
but the full moon's in a couple of days.
After that, all this might be over.
What if it's not?
No matter what happens to me,
you can still go back to the sea.
I have family and friends here.
I can't keep lying to the people I love.
Zac...
Thanks a lot.
You know why you want him to stay a merman?
Because you've actually fallen for him and can't let him go.
Nixie. What?
Ever since he saved you from that trident,
you've just been stuck on him like a remora on a shark.
That's nonsense. Stop it, both of you.
Arguing won't help.
Well, what?
Somebody better do something before we're all really sorry.
Nixie's right.
The pod will never let a merman in.
Zac must go back to being a normal boy.
Hey, take over, will you?
If you're thinking about swimming,
you should be between the flags.
Seriously. You get in trouble, I'm not supposed to help you.
I won't get in trouble then.
Ooh!
Someone got out on the wrong side of the kelp bed
this morning.
I just have a lot on my mind.
Care to share?
You know you can trust me.
Okay.
I thought we were on the same side,
but I can take a hint when I'm hit over the head with it.
Zac wants to tell Evie he's a merman.
No way.
Maybe it was the dream. What dream?
About the trident.
I'm sure that's all he ever thinks about.
We have to keep it away from him.
I didn't want to tell you this,
but Zac said
the trident makes him feel really powerful,
and that he has to have it.
He said it was his destiny.
Lyla and Sirena will have to believe me when I tell them.
And what if they don't?
Maybe you should take things into your own hands.
How?
Put the trident out of Zac's reach.
Oh, come on. There must be a way.
Is it a full moon thing?
Yes, but a moon ring can open the tunnel.
Well, great.
But I'd have to wait outside the tunnel to keep it open,
and someone else would have to go inside the chamber
and get the trident.
That sounds like a job for the Cam-ster.
The trident's a long way inside.
Can the Cam-ster breathe underwater?
Have you noticed how weird Zac's been acting lately?
Are you kidding me?
He's been doing it for weeks and I'm sick of it.
Has he said anything?
He was saying something earlier today
about when you guys went camping on Mako Island?
But then he clammed up.
Now that you mention it,
he did start acting weird after that.
Did anything happen on the island?
He didn't tell you?
Tell me what?
Uh...
On the Sunday morning,
I found him asleep on the beach.
He couldn't remember how he got there,
but he did remember
this tunnel.
And falling
into this pool of water.
What sort of pool? He didn't say.
I think I know where it is.
What if I go to the island tomorrow
and see if I can find it?
Yeah. Good idea.
Do you reckon I can borrow some of your scuba gear?
In case I've got to check it out.
Evie?
Okay. Great.
I'll take good care of your stuff, Evie.
Yeah, I know you will.
Because I'm going with you.
No, Evie, I think it'll be better—
First rule of diving.
Never dive alone.
Evie— This is not up for discussion.
If you want the gear, I go with it.
Yeah?
Hi.
About you joining the pod.
It's not gonna happen.
I'm sorry.
So I can't be a merman,
and I might never be human again.
Great.
Nixie's right.
You belong in this world,
not ours.
You have to go back to being a normal boy.
Just forget all this ever happened.
Are you gonna forget this too?
It's for the best.
Pretty hard to forget I had a tail
and I could breathe underwater.
It's pretty hard to forget I had legs and could run.
Will you keep the secret?
Just at least until the full moon?
Are you ready to go to the cafe?
Ah... I think I'll stay here.
If this is because of what you said about Zac before,
I'm over it.
Though an apology would have been nice.
No, it's...
It's not about that.
I don't feel so good.
Poor thing.
Will you be okay? Yeah. Yeah, I think so.
Do you want me to stay here?
Oh, no, no, no. No. Rita's here. It should be fine.
I just— I don't want two of us missing out.
Well, we won't be long.
Seriously, take your time. Have fun.
Okay.
Bye.
Zip it, furball.
I know what I'm doing.
So where is this pool?
Is it in a cave? Kind of.
What do you mean, kind of? It's either in a cave or it isn't.
You'll see when we get there.
Why are you being so mysterious?
I'm not. It's just easier if you see it.
What is she doing here?
She wouldn't let me take the diving gear unless she came.
She shouldn't be here at all.
Why is she here?
All will be revealed. Nixie, you're up.
Now that you've dropped off the gear, you can leave us to it.
I don't think so.
We can handle a couple of tanks of air.
Now, now,
can't we all work together on this?
She'll see.
Do you want to get the trident or not?
Look, thank you for coming out all of this way,
but I'd feel bad keeping you here for no reason.
You're just planning on diving into some unchartered cave,
why would you need a diving expert around?
I've done so much more diving than you can imagine.
Cam, this is crazy, I'm done. Enough.
I need you to help me dive.
And I need you to open up the cave of wonders.
Whatever. Can we just do this for Zac?
How did she?
Come on, you better get going.
I don't know how long this thing will last.
You stay here. In your dreams.
How did she do that?
What is that ring?
It's kind of hard to explain.
What's that?
Something happened to Zac in here.
He changed,
and he needs our help to change back.
What happened? What aren't you telling me?
If you want to help Zac, be quiet,
and do exactly as I say.
You're not going through?
It's for Zac.
Looking for your girlfriend?
She's gone diving with Cam. Are you sure?
Well, they were in a boat with wet suits and tanks
going out to sea.
Seems like diving to me.
Did you see which way they were heading?
East. Towards Mako.
The trident's safe, right?
It's in the water chamber where you left it.
And the land tunnel only opens on a full moon, right?
Well, we did open it with a moon ring.
But Cam doesn't know that. Right. Just Sirena and me.
And Nixie.
Nixie? Zac, what's going on?
Cam and Evie have gone to Mako.
Well, what's that got to do with Nixie?
She's sick. She's at Rita's. Are you sure?
Cam.
Cam, come on, hurry up.
Yeah. Going in now.
Do you know what's through there?
Only one way to find out.
Nixie?
Look. There's one missing.
Come on, Cam, please.
This thing is running out.
Cam.
Cam, come on, quick, please.
I'm running out of power.
Evie.
Cam, hurry. Hurry, the door's closing.
I can't stop it. Quick. Cam!
Get out of there, Cam. Come on.
Cam, get out here now.
Where's Evie?
Still in the chamber. Open it up.
I'll go back for her.
No. The moon ring's out of power.
Evie's gonna start running out of air.
We need to get her out.
There's another moon ring at Rita's.
Go.
What are you doing here?
I let Cam and Evie into the trident chamber.
Nixie.
Evie's still in there and running out of air.
Where's Cam?
Come on, your moon ring can open the tunnel.
You've done enough.
She'll see you're a merman.
I know.
You want to tell me why you did this?
Someone had to stop Zac.
Are you okay?
You had a tail.
Will someone tell me what just happened?
Don't all talk at once.
Zac?
I've wanted to tell you for ages.
I almost told you yesterday.
Go on.
I'm a merman.
Did you know?
Yeah.
And Cam?
Yes.
So basically everyone except for me.
Don't be too hard on him.
We wouldn't let him tell you.
Why?
We're mermaids.
Where's the trident?
Cam's got it.
Are you out of your mind?
I did what I thought was best for the pod
because no one else would.
Where's Cam taken it?
Somewhere where Zac won't find it.
And when he changes back, we can return it.
Look, I'm sorry, okay, but this will all work out.
Trust me.