Inside the forest, Lana and Lynn are searching everywhere for their white hair brother.

"Lincoln?!" Lana called. "Where are you big brother?!"

"Lana, I really don't think you should be talking so loud," Lynn warned. "I get that you're desperate but we really shouldn't be calling this much attention to ourselves."

"I know Lynn, but Lincoln's lost and all alone."

"Look, I'm just as worried as you, but let's face. We'll never find him."

"Not without us, you won't!" The girls looked behind them and saw two familiar birds.

"Harvey? Piri? What are you guys doing here?"

"We came to help you," Harvey answers. "It's pretty dangerous out here for just you two to go alone."

"Harvey, Piri!" Lana shouted. "Listen, we're not leaving this island without Lincoln and we don't have a lot of time. Can you tell us the fastest way to get to him?"

"Have you tried Toad Road?" Piri suggested.

"Seems awfully tempting, but will it take us to Lincoln quickly?"

"Uh…...no. It's actually a longer route. And it's full of toads! Lots and lots of toads!"

"And there's also Apple Passage," Harvey suggests. "If you like apples."

Lynn is quite exasperated. "Look! I don't care about apples or toads! We're looking for Lincoln! Our brother! The one with the white hair?"

"We need you guys to focus here!" Lana interjected. "Is there any faster route?"

Harvey darted his eyes to the left and right nervously. "Well, I guess if you want to get there as quickly as possible, I'm afraid your only chance is to take the No-Chance-Of-Survival Trail." Harvey points to a cave that looks dark and scary.

Lana shivers. "That seems a little creepy."

"No kidding!" Lynn agrees. "It has the words 'no chance of survival' right in the name!"

"Actually the name's kinda misleading," Piri replies. "It's more of a pathway than a trail."

"How is that supposed to be comforting?"

"Okay, I get it," Harvey said. "So it means you don't have a chance to survive, but that doesn't mean you won't come out alive, right?"

"I guess."

"Well there you go. Plus, if you wanna find your brother, we better get going!" Harvey ran in with Piri, but the two Loud girls were still behind.

"I don't know Lana. If we go in there, we might never get out. Maybe we should just head back."

"But Lynn, there's no other way! If there's a chance this trail will lead us to Lincoln, it'll be worth it!"

"You know, I do like your determination. I guess we got nothing to lose. Let's go!"

"Yeah!" The two girls went on into the cave.

Once they were on the trail, they all saw things like vines, bats, and cave spiders.

"It's not too scary in here," Harvey said nervously. "I mean, it's a little musty but not so scary."

"I don't know why I decided to go through here instead of Toad Road," Lana said. "I love toads."

"Yeah," Lynn agrees. "And I think I would have taken my chances with the Apple Passage. I mean an apple a day does keep the doctor away."

"Lynn? In case I don't make it and you do, please take good care of Hops for me."

"I will. And if you make it and I don't, keep Lucy's bat away from my stuff."

"Deal."

"Don't worry guys," Harvey assures. "As long as we have each other, we'll be fine."

"I'm happy as long as you're here." Piri leant in close to Harvey.

"So am I. I'm always happier when I'm with my friends."

Just then, they all bumped into a giant large rock blocking a cave.

"This looks like a dead end to me, guys," Lynn said. "Now what?"

Just then Rooter came in. "Looks like you guys could use an assist."

"Rooter? Where'd you come from?"

"Oh never mind that. I couldn't help but overhear you need a path through this area. Well I just might be able to clear one for you, but I'm gonna need vitamins."

"So what do you expect us to do?" Lynn asked sarcastically. "Just go to the pharmacy and pick out some B12?"

"What's a B12? I'm talking about fruit. And these trees are loaded with it. Every now and then, those cave spiders shake the tree and they fall. I tried bouncing on these mushrooms to get some air and catch them before they splatter, but it appears that my rather ample frame has left me vertically challenged."

"Great. I feel like I'm talking to Lisa," Lynn muttered to herself. "So what you need is someone small enough to catch the fruit before it hits the ground." Lynn turns to her younger sister. "Hey Lana. You know anyone that fits the bill?"

"No, I don't think so….." Lana then realized what Lynn had meant. "Oh you're talking about me, aren't you."

Lynn rolls her eyes. "No, I'm talking about the other blonde six year old girl with pigtails, a red hat and overalls right in front of me. Who do you think I mean?"

"Alright, I'll do it. But only if it gets us out of here."

Lana climbs on top of the giant mushrooms and began bouncing on them. At first she didn't quite reach, but she started giving her bounce a little more strength. Then she gave it a little more until finally she reached the top of the tree. Once there, she began shaking the branches, making all the fruit fall down to the ground while the others were catching them. Lana then fell down herself and landed on the mushrooms.

"I did it! I can't believe I did it!"

Lynn was impressed. "I wouldn't believe it if I hadn't seen it myself. And this is coming from the girl who beat a frog in a jumping contest. Alright Rooter, do your thing."

But Rooter was busy eating his fill. "Huh? Oh, right mate!" However, all he did was give the boulder a hip check, causing it to move.

"Are you kidding me?!" Lynn said exasperated. "All you had to do was push a rock?! Why I oughta whoop your…..butt for this, warthog!"

"Hey! You think becoming this strong comes easy?"

"That don't cut squat!" Lynn began to rush in, but Lana stopped her.

"I'd quit while I was ahead if I were you," she said.

"Alright. I'll let him off this time."

The kids then proceeded to another cave.

The cave led them to another location where Lynn and Lana were on one side of a canyon with a broken bridge, and Harvey and Piri were already far ahead.

"Harvey? Piri? How did you get all the way over there?" Lynn questions. "We were standing right next to each other the whole time!"

"Yeah funny story," Harvey explains. "We were kinda walking ahead of you and then the bridge collapsed. But don't worry, I think you can find a way over here."

"Great!" Lana face palmed. "Now how are we supposed to get across?"

Lynn then spotted a branch way up high and a vine rope right next to them. "Lana! I got it! There's a rope vine here and a branch up there."

"So?"

"Remember your training? If you could wrap the vine around that branch, we could create a swing and use it to get across."

"I don't know Lynn. I'm a little rusty. What if I can't do it?"

"You have to try. Remember, we're doing this for Lincoln."

"For Lincoln. Alright! I'll give it my best shot!"

Lynn then handed Lana the rope and then she tries to concentrate. "Okay. Here goes." Lana tossed one half of the vine to the branch, but it missed, making her a little frustrated. She then tried again and it misses again. She then got so mad that she stomped her foot to the ground. "Augh! Why is this so difficult!"

Just then, Lana remembered what Lincoln told her during her training. "You just have to remember these 3 things. Precision, perseverance and patience."

"Okay. Just calm down Lana. Remember what Lincoln told you. Just focus, concentrate, keep going, don't give up, stay calm, be patient and don't get mad. You can do this!"

Lana calms herself down and aims for the branch. Through all her patience, she successfully wrapped her vine around the branch and used it to swing across the canyon.

"I…..I did it. I did it! Hey Lynn! Catch!"

Lana threw the vine over to Lynn, which she used to swing herself across the canyon too.

"I really did it! I actually did it! Did you see that Lynn? Did you see what I did?"

"Sure did," Lynn congratulated. "I gotta admit, you got guts, little sis. Okay Harvey, where to next?"

"Okay," Harvey said. "I think I know where your brother is. He's just beyond these caves. All we have to do is….."

Suddenly, a giant reptile came in and pinned Lana to the ground. The reptile was revealed to be the alligator she battled before. "Ha! Finally I have you! How does it feel to be taken down?"

Lana laughs nervously. "Look pal. I understand you're being a bit of a sore loser, but I'm kinda on a mission to rescue my big brother, so why don't you just let me go and we can just put this whole thing behind us? What do you say?"

"Aw that's really sweet of you kid. The only problem is I'm not a forgetful guy, and I don't like losing!" The gator took Lana and headed off into the caves.

"Lana!" Lynn shouted.

"Don't worry, Lynn. We'll get her back and you're brother. Now follow me!" Harvey ran into the cave as the other two followed.

"On with the quest!" Piri announces.

"On with the—can't we just get out of here?" Lynn groaned.

Once they reached the end of the cave, everyone was in front of a giant water slide.

"Time to meet your demise, little girl," The gator threatens.

"Hey!" Lynn shouted. "Give me back my little sister! I need her to find my little brother! And I don't think you wanna mess with her again."

"Oh, yes," the gator did say. "Last we met, I tried to fight, but she came out on top. But not this time. As payback, I have decided to make her a one course meal."

"What are you crazy? You can't eat a human girl!"

"Ah, don't worry. I hear they taste like chicken. Besides, why would you want a filthy little grease monkey for a sister anyway?"

"Look pal! As weird as she is, Lana is still my sister! She's kind, generous and always willing to help anyone." Lana smiles at what Lynn says. "So I'm not gonna let you hurt her!"

"Oh? And just how do you propose to win her back?"

Lynn took a look at the water slide. "How about we race for her? Just you and me. And if I win, I get to keep her. If you win, you can take me instead."

"Let me get this straight. You're willing to risk your life just so you can save your sister?"

Lynn nods.

Lana spoke up. "Lynn. Don't do this. You don't need to worry about me."

"I'm sorry Lana, but I have to. I can't back out. If this'll get us closer to Lincoln, at least one of us should be able to find him. Plus you still have plenty of years left in your childhood."

"Enough talk!" The gator shouts. "Let's race!"

The gator tied Lana to his back with a vine and went belly sliding down the water slide.

Lynn took a piece of tree bark and slid on it.

During the race, the alligator began racing ahead while Lynn was falling behind.

"He's too fast!" Lynn thinks to herself. "I'm never gonna catch up! Maybe I should just forfeit." Lynn then remembered when Lincoln cheered for her during her race back at home. "No! I can't give up! I have to do this! For Lana! And for Lincoln!"

Lynn then used her legs to speed up until she was caught up with the gator.

"Give it up Loud!" The amphibious reptile taunted. "You can't fight evolution. I was built for speed."

"The question is, gator breath," Lynn taunted back. "Are you hungry?"

"Hungry?"

"Yeah. Cuz you're about to eat my dust!"

Lynn sped up ahead to reach the finish line. She's almost there, but then her sled hit a big rock and sent her flying into the air. But successfully, she reached the finish line first.

Lynn did a little victory dance. "Oh yeah baby! I win! Lynner, Lynner, Chicken dinner!"

The gator finally came in second. "This is impossible! Best two out of three!"

"Forget it! We had a deal! I beat you! Now give Lana back! And take a hike!"

"Fine! You win! You can have your sister, but mark my words, this isn't over!" The gator gave Lana back and swam away in a huff.

"Thanks for the save Lynn," Lana praised.

"No problem," Lynn said. "Listen Lans. Sorry for you know, getting you in trouble back there. It was unintentional."

"Eh, that's all water under the bridge. Besides, I've been through much worse."

"True that."

"So, you never gave up, huh?"

"What can I say? I learned from the best."

"If by best, you mean Lincoln, I agree."

"You gotta admit, our bro's tactics have been helping us out a lot. But seriously though, I'm starting to question your activities. I only did this to save your life."

Lana smiles.

Just then, Harvey, Piri and the twins came in.

"Guys!" Harvey shouts. "That was amazing! I knew you guys could do it!"

"No problem," Lynn said with pride. "Anything for the safety of my family."

Lana shrugs. "So I'm guessing you guys were here to help support us in our mission?"

"Nah," Fee waves her hand down. "I just came by to watch you fail."

"And I just came here because she was," Foo replies.

"Okay…...so do you know how we can get to our brother, Piri?" Lana asked.

"Of course," she replies. "It's right down there." Piri was seen pointing to a giant whirlpool right behind everyone. However, the Louds were filled with surprise.

"A whirlpool? Seriously?" Lynn asked. "Look, I know you guys are trying to help, but come on! Even if we do survive, I don't see how that whirlpool can take us anywhere, except for maybe the bottom of the ocean."

"This is no ordinary whirlpool. This one will take you right to your brother. All you have to do is jump right in, and be sure to think happy thoughts."

"I don't know. What do you think, Lana?"

"Well it makes about as much sense as everything else we've been going through all day," Lana replies. "So why not?" Lana took a few steps back. "Here goes nothing. We're coming for you Lincoln!"

Lana ran up and dived right into the whirlpool. Lynn jumped in also, followed by Harvey and the twins, Fee and Foo.