After finding out about Merlin's intention, the whole group are arguing with Merlin while Jim is just staring at the post of the vespa since his vespa was destroyed.

Merlin: If not Gunmar, then another monster.

Blinky: Let me get this straight. You want Gunmar to release Morgana?

YN: We're suppose to destroy Gunmar! Not the world!

Toby: Merlin, I thought you were here to save the world, not destroy it!

Merlin: I'm not destroying the world, I'm risking it! The world harbors greater dangers, not just the ones in your little town.

Toby: Whoa. What dangers?

Merlin: You could not hope to understand.

YN: All I know is stopping Gunmar will prevent freeing Morgana!

Claire: Jim? Jim? Jim! 

Jim woke up in reality and realize they're discussing with something.

Jim: Huh?

Toby: Want to weigh in here? Merlin just dropped the bomb we have to let Morgana loose.

Jim: Wait, he destroyed my Vespa.

Blinky: He what? See? Then you must listen to the voice of reason. Mine!

Merlin: Gunmar has the Staff of Avalon. Soon he will find a way to free her. This is when we will strike. Together, we'll slay Morgana before the Eternal Night starts.

Toby: Whoa, whoa, whoa. I'm sorry, you want Jim to go up against Gunmar and Angor Rot and Morgana?

YN: That's three most dangerous enemies we're all gonna be facing. Angor and Gunmar are enough but now you want them to bring a witch in the game?

Merlin: Now is the time to strike. She's been imprisoned for centuries, and she will be at her weakest. This is our best chance.

Claire: Wait. If Jim defeats Morgana, you get your magic back.

Merlin: That would be a pleasant bonus, yes.

Blinky: Oh, you only want your magic back! Aarg, my friend, put your fist through the old man's face.

Aarg: Mmm. Old man make sense. Stop witch forever.

Toby: I'm with Blinky. Sounds like Merlin wants his magic back.

Claire: What if Merlin's right? He's been right about everything else.

Merlin: Thank you.

YN: Girl are you listening to yourself? Gunmar and Morgana want to destroy the world.

Toby: We live in this world!

Merlin: Yet, this world is protected by the Trollhunter. The choice is his to make. What say he?

Jim: Uh... I need to think...

Merlin: Then, I await your decision.

Blinky: Whatever you choose, if we are to fight, we'll need an army. Aarg and I will see what we can do. As to whom we are fighting, I'll leave that to Master Jim.

They all left the garage and a new day has come which YN realized something.

YN: Aw man, I almost forgot I got a date.

Claire: You and Aja.

YN: Pretty much.

Toby: Uh, I don't think this is a good time, for a date.

YN: I know, but I don't want to be late on my first date. Besides, I want to warn her to leave Arcadia with her family.

Jim: Whoa, hold on. You're not planning on dragging her in our Trollhunters business.

YN: Oh like how you got Claire in it.

Claire: Excuse me?

Jim: The only reason she got involved is because her brother was taken to the darkland.

YN: And we took a huge risk opening the killahead and Gunmar is free and now wants to free Morgana for transforming Arcadia into a free buffet with none of the gumm-gumms are vegan.

YN sigh and grabs his backpack before he heads to the door.

YN: Look, deep down I'm starting to care for her even though we don't talk or see each other much. So let me get this chance. It could be our last one.

Jim: YN, wait.

YN glance at his friend.

Jim: Just...be careful. If something goes wrong, just warn us.

YN: I'll manage.

YN leaves the house and grab his gas bike before heading off. But first he's heading to school to look for the serrator to give it back to Aja. Meanwhile at Tarron home, their daxial array is now working yet all it needs is to recharge. In the meantime, Stuart is giving them some couple planets they could try to live in.

Stuart: Finally, Earth. Sure, it's class-D, but can you name another planet with a Stuart? Plus, the best part, you're already here.

Aja: Stuart.

Stuart: I know, I know, but with your daxial array working, you want to get going. But I just want to give you a few pointers.

Aja: We're not leaving right now. The ship takes some time to recharge.

Mother: [My royal is being vague to protect your emotional state, but we will be ready to launch in 48 horvaths.]

Stuart: (Gasp.) That's hardly any time at all! Mother!

Mother: [Mother tells it like it is.]

Stuart: Why do you guys have to move?

Vex: It is too dangerous to stay on the mud ball. The Zeron Brotherhood and that Birdie woman found us. Seklos knows what hunter will come next.

Aja: So, we need a new planet to hide out on until Mama and Papa wake up.

Stuart: (Sigh.) Then might I suggest Nuobus? It's got a killer music scene, advanced tech, and some of the best skelteg gambling in this star system. I'm looking at you, Aja.

Krel snatches the paper from Stuart.

Krel: Why didn't you tell us that sooner?

Aja: Wait, let me see.

Krel: Wait your turn, Queen-in-waiting.

Aja snatches it and runs off as Krel follows. Leaving Stuart and Vex in the living room.

Stuart: Sorry, not sure if chess is a thing on Nuobus.

Vex: Varvatos Vex will not be going.

Stuart: Just because they don't have chess? Have you tried checkers? Checkers are universal.

Vex:  Varvatos must stay behind and slaughter any hunters who reach Earth. Morando cannot discover that the royals have fled to a new planet.

Stuart: But you'll miss seeing the king and queen wake up. You've protected their children. Saved their lives. They'll want to thank you.

Vex: (Sigh.) Somehow, Varvatos doubts that.

Stuart: Hang on, what's that supposed to mean?

Krel manage to snatch the paper back and runs in his room.

Krel: I got it! It's mine now.

Aja: Fine. I'm late for my date anyway.

Krel: Wait. What date?

Aja: With YN.

Krel: Ugh. How is (Couple name.) still a thing? We leave in two delsons.

Aja: I cannot leave without saying goodbye. He's been so kind to me. He deserves to know.

Krel: Deserves to know what?

Luug snatches the paper from Krel and hands it to Aja.

Krel: Hey!

Aja: I'll be taking this. It will help me break the news to YN that I'm moving.

Krel: Wait, Aja. You cannot show him that.

Aja: Why not? We're leaving soon anyway.

Krel: Exactly. So why take the risk now? We are so close.

Aja just scoffs and leaves.

Krel: She's not actually going to tell him...is she?

Time skip

YN was sitting by his bike near the diner as he's waiting for Aja. Bad news is that he couldn't find her serrator when he went to look for it at school. Soon Aja arrives and YN speaks.

YN: Hey, Aja. About your protractor, I-

Aja: Oh, yeah, I got it.

YN: Oh, you got it?

Aja: (Smiles.) Yup. Thanks for bringing it back.

YN: Oh um. No problem. Wanna go eat and talk?

Aja: Sure.

They head inside the diner and order something to eat while sharing their stories.

YN: Next thing you know, Jim had a crazy ride on vespa before he even got one. He was definitely not ready for a race.

They both laugh about YN story.

Aja: Sounds like you and your friends shared a lot of lively adventures.

YN: Oh, you have no idea. Our friendship really began when we were little. Long after he had that safety suit.

They laugh again until they take a moment to breath before they speak simultaneously.

YN & Aja: Hey, there's something I need to tell you- oh, sorry. You go first.

They stop for a moment and wait for one of them to speak.

YN: Its okay, you can go first.

Aja: No, you can go first.

YN: You sure? It might be a lot to take in. So you can go first. 

Aja: You sure?

YN: By all means-

Krel: Good evening.

Krel arrives before they could speak and sat next to YN.

(Imagine YN instead of Steve.)

Krel: Mind if I join?

Aja: Yes? What are you doing here?

Krel just snatches her soda.

Aja: Hey, that's mine.

Aja tries to take it back but Krel holds on to it.

Krel: I'm not sure I can trust you with this soda. I have to protect it.

Aja: You can't tell me what to do. If I want to share my soda, I can.

Krel: But if you share your soda, then you also share my soda. And I don't want to share my soda, especially with YN.

YN: Uh, thats okay, I ordered my own soda. I can get order another one if you want.

Aja: It's not that, YN. It's...

Krel interrupted by playing the soda straw to make annoying noise.

Aja: I'm sorry. My little brother is an- Ouch!

Krel kicks her knee from underneath the table.

Aja: I was going to say "an annoying pain in the dorsal."

Aja kicks but misses and accidentally kicks YN. Just then the lights begins to blink.

Aja: Krel, stop playing with the lights!

Krel: Uh...That's not me. Although, it would have been a good idea.

Then the radio was acting weird before they notice something glowing and their spoons and forks are floating.

Aja: Oh, no.

YN: What's going on?

Krel: We need to run.

Before they could do anything, they were floating next and were taken outside only for them to see a space ship.

YN tries to grab on the rooftop of the diner and grab Aja and Krel until the rooftop broke a piece. They were then teleported inside the Zerons ship.

Aja: This is not good.

Krel: And it gets worse.

YN: Ok, this is definitely not a joke. We're definitely in a spaceship!

Aja: YN, I can explain.

YN: Okay, okay, okay. I just need think. I can get try to get us out of here.

Aja: (Whispers to Krel.) What is he talking about.

Krel: Beats me.

YN drop his backpack and starts tapping the metal wall to see if there's a way out.

YN: Maybe there should be a button or a panel that opens the door. Or a code word. Okay you know what? I'll just metal bend. Stand back.

Before YN could do anything, the door opens to reveal Alpha and Omega.

Omega: Aja and Krel Tarron.

Alpha takes their weapons away.

YN: Wait, what? You two know them?

Omega: And what is this?

YN: YN LN, don't even think about hurting my friend.

Omega just punch YN to the stomach who collapse by her stronger punch.

Aja: YN!

Alpha: Throw him in the vivisection room. He could be useful yet.

YN: Like I'll ever work with an alien dog and an alien reptile. You guys better call the vet. Hey!

Omega handcuffs YN before dragging him.

YN: Hey, let me go!

Aja: No, stop!

Omega: You're lucky you may be useful, otherwise I'd kill you for quiet.

YN: And you're lucky that I don't hurt dog partner cuz dogs are cute. But for bullies we can an exception. OOOOOOH!

Siblings: OOOOOOH!

Alpha: Enough!

YN: ....(Quietly.) Oooooh! (To the siblings.) Watch over my backpack while I'm gone. You never what you might need from it.

With that, YN was take and thrown in another cage.

YN: You won't get away with this!

Omega: Too bad you'll never set foot on Earth again.

She chuckles before leaving YN as he tries to break out but the bars are electrified. He sat down and tries to come up with a plan until he hears a cow mooing and notice there was a cow in the cage.

YN: Huh, they really do abduct cow.

Meanwhile with the siblings, they're still inside the room and trying to figure out a plan.

Aja: We'll get out of this room, rescue YN, find the cockpit, and open the escape hatch, all before Vex gets here. Easy.

Krel: There's gotta be something useful here that we can use.

Aja notice Krel is digging in YNs backpack.

Aja: What are you doing?

Krel: Maybe YN have something we can use. It would save time if I had four arms.

Aja: In about 17 mekrons, I will.

Krel: Why didn't you renew your transduction before your date?

Aja: 'Cause I'm tired of hiding. To be normal on Akiridion, I had to hide that I was a royal. To be normal on Earth, I have to hide that I'm a royal and an Akiridion. For once, I just want to be me.

Krel: I know, I know. But it's too dangerous. I want to tell one person, and I thought YN would understand. I wanted him to like me, no matter what form I'm in. But apparently, he thinks anyone not from this planet is a brain eater.

Krel: He'll come around. Hey, I used to think all humans were barely evolved amoebas. And now I know they're somewhat evolved.

Krel continues to see what YN got in his backpack.

Krel: (Scoffs.) Urgh, all he has are metal cables, scraps of metal, rocks, these old gloves, and bunch of crystals.

Aja: Why does he have all these in his backpack?

Aja picks up a piece of metal that's an aluminum and Krel notice it.

Krel: Aja! YN was right.

He grabs the piece from Aja.

Krel: This could save us! I can use the aluminum to disrupt the ionic latch.

Krel uses it to cut the magnetic handcuffs like a saw and successfully free themselves.

Krel: Go save YN, and I'll meet you in the cockpit. And don't tell him he was right.

They both split up. Aja went to look for YN while taking his backpack while Krel went followed Alpha quietly as he found out they negotiate Vex to turn in the king and queen cores.

Aja: Vivisection room. Vivisection room. Why aren't there signs? YN, where are you? His phone!

She tries to use her phone to locate YNs and follows his location. Soon she arrive and saw YN in the cage with the cow.

Aja: Yn!

YN: Aja!

Aja: Did they hurt you?

YN: No, I'm okay. Besides Bessie smell.

Bessie: Moo.

Aja: You named it?

YN: Uh...There should be the controls to the cage here somewhere.

Aja: On it.

Aja looks for it and presses it to free YN and the cow before YN and Aja hugs.

YN: Wait, where's Krel?

Aja: Waiting at the cockpit for us. We have to go, now.

They were about to leave until Omega block their exit.

Omega: You'll come quietly, or else.

YN got in front of Aja until Aja jumps over the cow and kicks the cow towards Omega against the wall. Aja tries to grab her serrator from Omega, but she kicks Aja away yet manage to get her serrator away where YN caught it.

YN: This thing again? What is it? Where did you get this?

Aja: I got it for my tenth birthday. Now throw it!

Omega grabs and lifts her up.

YN: Let her go!

He grabs a rock and throws it at Omega face, causing her to let go of Aja who join YN before getting her serrator back.

Aja: Guess those rocks did come useful after all.

YN: There's more than meets the eyes.

Omega aims her weapons at them.

YN: Okay, that ones armed.

Aja: So am I.

Aja fight Omega and does her best until she was knock down. Before Omega could aim her weapon. Her arms were pulled away by a metal cable. Revealing it was YN with his metal bending.

YN: Your dog friend is right about one thing, I am useful. But not for you.

With that, Aja takes the opportunity to punch Omega and joins back with YN. Omega was about to fire, but YN grabs the metal from the floor and bends it to make a shield from the blast, surprising Aja.

Aja: How did you do that?

YN: I'll explain later.

Meanwhile Alpha is meeting up with Vex who has the king and queen cores into the case.

Alpha: Hand over the cores, Varvatos.

Vex: Where are the royal children?

Alpha: Held in the cockpit. Now, I shall not ask again.

Vex: ...The king and queen, as you wish.

He slides the case towards Alpha.

Alpha: Your honesty will be your downfall.

Krel: Stay away from my parents.

Krel aims a weapon at Alpha.

Vex: Krel, no! Leave this place!

Krel tries to shoot, but Alpha over powers him and throw him against Vex before grabbing the case.

Krel: No!

However, when Alpha opened it, all he saw was a chess piece of king and queen with an explosive bomb.

Alpha: You lied?

Vex: Varvatos promised a king and queen.

Vex shields krel and himself with his serrator.

Vex: Checkmate.

The bomb exploded and caused a hole on the ship where it starts loosing altitude as we see Aja and YN are holding on to something.

YN: This sucks!

Aja: Literally!

The cow fell off the ship first.

YN: Bessie! No!

Aja kicks Omega to the hole where she grabs YN and cut the cable. Making them both fall as YN grabs the metal wall with a grip. But it wasn't enough as it tear off and they both fell.

YN: Aja!

Aja: YN!

Aja jumps out without any hesitation and tries to catch up with YN. As she catches up, her human disguise wears off and she catches YN who was surprise to see her true form.

YN: You're a.. You're an alien?

Aja: Yep.

YN: um, you can fly, right?

Aja: Nope.

YN: Oh....good to know.

They continue to fall until Aja uses her hover board to slow down their fall. But it was not enough until YN gets an idea.

YN: Do you trust me?

Aja: At this point, I do.

YN: Head towards the tallest tree!

She tries her best to go to a near tallest tree and once close enough, YN uses his cable to attached it towards the tree branch and they swing to slow down their speed before the cable snapped. They roll on the ground until they stopped where Aja was on top before she quickly gets back up and offers YN a hand to which he accepted it.

Aja: Oops. I didn't mean to... So this isn't really the way I wanted you to find out. We're not all like the Zerons.

YN: Whoa. So this is what you wanted to tell me back at the diner?

Aja: (Sigh.) Yes...

YN: Wow, You look beautiful.

Aja: You're not frightened?

YN: I mean I was, but I've seen a lot of crazy stuff but this is totally new and you being blue.

Aja: (Giggles.) And did I also mention I'm a Queen-in-waiting?

YN: Awesome. Have I told you that I'm actually earth's champion? In a nature way.

They were about to kiss until YN felt something from his seismic senses.

YN: Wait.

Aja: What? Is it me?

YN: No. Her!

Omega is alive and gets ready to fight them.

Aja and YN notice the ship is coming towards them which made them run. Omega realized it and tries to run but it was too late for her. The couples run but they were blocked by a stone wall as the ship gets close.

YN: Stay close!

YN uses his earthbending to push the ship back with everything he's got and successfully stops it.

Aja: How did you do that?

YN: Earth's champion.

Soon Krel and Vex fell of the ship.

Aja: Little brother! Thanks for not crushing us.

Krel: I must admit, I have better aim with spaceships than serrators.

YN: For an alien, that was a pretty good landing.

Aja: We need to talk about your use of the word "alien."

Vex: Varvatos Vex will slaughter any-

Aja: Relax, Vex. He's okay.

Krel: Oh, great, the secret's out. YN knows.

YN: Wait, you guys are not gonna try to memory-wipe me, are you?

Krel: No. We're going to suck your brains through your ears.

Vex: We are? (Smiles.) Most glorious!

YN: Preferably from the nose, heard its easy that way.

Aja: Guys!

Krel: Kidding.

YN: So, how come you're not blue like your sister?

Krel: Just give me a mekron. Jeez.

Aja: YN, you have to promise not to tell anyone about us.

YN: I promise. After I show you my secret.

Krel: What secret?

YN: Well... Before I tell you guys, do you guys know that crystal guy at the bonfire?

Aja: Yeah?

YN grabs the crystal from his backpack and crystal bend it to make an crystal armor.

Aja: (Gasp.) You were that Petrosapien?

YN: No, I can do this because I can crystal bend. I can control any rock or rock related to my will. Even lava bending. (Sigh.) Sorry I didn't tell you guys sooner.

Aja: That's amazing!

YN: Wait, really?

Krel: Well, it would be explain a lot of why you have all that stuff in your backpack.

Aja: But what matters is that we both confess about our secret.

YN: And that we'll keep our secrets.

Time skip

YN came to visit their home including in their mother ship where aja shows them their parents being regenerated.

Aja: And then we crashed here, far from Morando, but also far from everything we've ever known.

YN: Man, must've been difficult for you guys from the bounty hunters. But you were brave to fight. And I thought fighting trolls was frightening.

Krel: You know, YN, you are not such bad after all.

YN: Thanks. Neither are you, buddy.

Krel: Ha! That was never under consideration.

Soon luug came in.

YN: Aw, this guy is cute.

Meanwhile Stuart and Vex are watching from a distance before Stuart speaks.

Stuart: When the kids leave, you're more than welcome to stay with me.

Vex: No.

Stuart: I know, I know. I'll get air fresheners.

Vex: Varvatos will join the King and Queen-in-waiting. His duty is to protect, and he cannot do so from afar. He will go wherever the royals go and deal with the consequences when they come.

Back with the kids, YN was holding luug and petting him until he realize there's something he needs to tell them. He hand luug to Aja before speaking.

YN: Look, I don't want to bring the bad news. But if you guys are ever planning on leaving the planet, I think its best to leave soon.

Krel: Why?

Aja: Is it because of us?

YN: No, no. Arcadia is not safe for long. Something big is going on here. And I wanted to warn you guys about it.

Aja: Is it about the trolls you talked about?

YN: Evil ones. I'm not sure when, but its definitely coming down.

Just then, YN got a phone call and he picks it up to see its Claire.

YN: Claire?

Claire: [YN, get over here. Quick! Merlin did something to Jim!]

YN: Jim? What did Merlin do to him, Claire!?

Claire: [Just come assap!]

YN was hesitant until he speaks to his akaridion friends.

YN: I'm sorry, I have to go. Its my friends. Well, human and troll friends.  Yeah.

Aja: I get it. We'll see you tomorrow.

YN nods and left to head straight towards Jim's house. But when he got there, things became much worst.