At the ruined chopper, the Louds are trying to fix the manual controls while thinking about how awful they feel about hurting Lincoln's feelings even he hide this from them to keep them stranded to have fun together.
Luan: Do you guys think we've been that hard on him?
Lori: Well, I guess we are.
Lola: Yea. But he kept us stranded here and keep this to himself from us.
Lynn: Hold up Lola. Yea he did lied to us. But, he did some favors to us. Like, I can be free to do any activity while being naked like facing monsters like the Greek competitors and Hercules.
Lana: And swing through vines and befriends with many animals like Tarzan and Mowgli.
Lisa: If it weren't for him, we wouldn't have discovered this habitant island full of wonders and bizarre fauna. And more interesting to venture in our birthday suits, which I bet it would put the expedition team, TV host survivalists, and survival contestants into shame.
Lucy: I also love being like this for embracing the wonders of caves to become a a queen of dark nature.
Lola: Right, though I did have fun at the jungle pageant couple days ago and I don't feel ashamed of my body thanks to Lincoln and Leni helping me.
Lori: Maybe once mom, Luna, and Leni brought Lincoln, here we'll make it up to him somehow.
The family agrees as Lana and Lisa are almost finished fixing the controls.
Lynn Sr: Any luck you two?
Lisa: It looks pretty active now. But just to be sure if we activate the chopper's flight.
They turn on the helicopter and then the rotors are starting to spin as leaves are flying around by its wind.
Lisa: Success! Now we just...
Suddenly, a leopard beast burst from the front windows and swipes the controls with it's claws, making the Louds lost their chance to lift the chopper that would get them off of this island.
Lisa: NO! So close!
Lynn Sr: Girls! Behind me!
The leopard beast tries to break in as the kids are frighten while Lily cries in fear. Then more leopard beast are about to use the door to get in.
Lori: THE DOOR!
Lori, Luan, Lynn, and Lucy close the door and trying to block it from the predators while their father use a case to threaten the leopard beast from the front window. The girls couldn't hold it much longer as the feline pack are get closer to break in. Before the girls are about to lose strength, something pull the leopard beasts away from the door and the family hear them screeching in pain like something is attacking them. The leopard beast in the front window looks back and notice something that is attacking it's pack as it spares the Louds and focus attacking the unseen attacker. They hear the fight between the remaining leopard beast and the attacker until the painful screech became the final noise they heard. After that, it was quiet as the family wonders if it could be a big animal saving their lives or a deadly apex predator that wanted to eat them for itself. Then they heard humanoid footsteps approach the door and the unseen attacker kicks it down. They fear what it might be until they became surprised and overjoy that their savior is...
Loud Family: POP POP!
Albert: Girls! Lynn!
The girls hugged their grandfather with tears of joy.
Lana: It's so good to see you Pop Pop!
Albert: Good to see you guys too. Hmm, I'm guessing stranded on this island lead you to be like this...
He pointed the Louds are currently completely naked.
Lori: Oh that. Well we just got use to this.
Albert: Say no more Lori, I feel the same way a couple times. Both in my youth and my current time.
Lynn Sr: So how did you get here?
Albert: I had some help.
Who he brought was Charles the dog, Walt the canary, and Fangs the bat.
Lana: Charles!
Lori: Walt!
Lucy: Fangs!
Albert: Your pets told me of everything of what happen you guys. Charles has good hear of you guys screaming in a killer storm.
(Flashback)
Louds left all of their pets at home for a boat trip. Later, Charles hears the Loud from many miles, screaming in terror as he tells Walt and Fangs to go check on them. Walt and Fangs are a little frustrated that their busy with their own plans, but they accept to check on the family at the lake. They search around until they find some broken pieces of the boat that Lincoln won, fearing of the lives of their owners. They head back to warn Charles and the other pets about this and plan to tell everyone of Royal Woods to check Eddy Lake. Neighbors, friends, and relatives of the Louds came to the Lake and recognize the Louds's boat pieces floating as they became shocked and worried of what happen to the Louds. They send boat guards and rescuers to find them, but fail to do so since the storm drives them away. Weeks later, Charles came to Albert to use the armored submarine to travel into the storm. Walt and Fangs accompanied with Charles and Albert for keen sight as they use the sub to travel underwater and went into the whirlpool that takes them to the strange island where the Louds are stranded. As they got out of the sub and went into the jungle they heard some violent roars and notice a pack of leopard beasts attacking a ruined chopper, believing that the Louds are in there as he confronts the pack by use his strength to take them down. He successfully knocked out all of them before approach the door.
(Flashback Ended)
Lynn: Cool!
Luan: That explains why you still had you clothes on.
Albert: Yep. Say, where's Rita, Leni, Luna, and my younger copy Lincoln?
Lori: Um, they're out their looking for Lincoln because it's to rough to talk about.
Albert: Well we better for find them. Charles, can you smell their trail?
Charles barks as he agrees to follow their track.
Lucy: Fangs. Walt. Think you could look around the island.
Walt chirps and Fangs nodded as they fly up to the sky to look around the island. They check every place on the island until they see Rita, Leni, and Luna reaching the rocky mountain chasms. Then they see Lincoln hiding in a small cave miles away from them. Suddenly, they also spotted a pair of tiger-lizards who are approaching Lincoln from miles. Terrified by this as they quickly fly down to the Louds and warn Lana about the tiger-lizards hunting their brother.
Lana: What?! Okay! Guys there's good news and bad news! Good news is that mom, Leni, Luna are reaching the rocky mountains where Lincoln is.
Lori: Okay. What about the bad news?
Lana: A pair of tiger-lizards are hunting Lincoln and they're getting close to him!
Everyone gasp in horror as they must hurry to save him.
Albert: Time we save the full house gang. And I'm going in your ways guys.
Lori: Whatever you say Pop Pop.
Lana: You guys head without me. I'll get backup.
Lola: Lana! There's no time!
Albert: It's alright sweetie, I know Lana has the trick to help us. Go get the backup Lana.
Lana: Will too Pop Pop!
Lana rushes to the jungle while the rest headed to the rocky mountains to help Rita, Leni, Luna to save Lincoln.
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