Rebecca and Mojo walked around the jungle, then they ducked as a few coconuts fell from the trees. Mojo sighed in relief, "Ah, no flying ice cream trucks." Rebecca said, "You and me both." As they were walking, a few figures watched them from the bamboo as they held spears.

Mojo stops and begins looking around apprehensively. Sensing his concern, a worried Rebecca inquires. "Is something wrong, Mojo?"

"I...think...that someone may be following us!" he replies fearfully.

Now it's Rebecca's turn to be scared. "Following us? But, who could it be?"

"I don't know..." he replies. "It might even be the jewel thieves!"

Just then, several menacing islanders in tribal masks, toting razor-sharp spears, jump out of the brush and ambush the two of them. Rebecca and Mojo gasp audibly; thinking quickly, Mojo and Rebecca quickly pick up two large sticks and wallop the spear carriers on their heads, knocking them out.

"That was a close one." Mojo breathes.

"We'd better go find the others before danger finds them." Rebecca says with concern.

Just then, the spear carriers come to and begin chasing the girl and the monkey around a tree. "HELP! HELP, BILLY, HELP!" they cry in fear. Hearing their voices, Billy gasps, "Oh no, my friends!" He then rushes toward the sound of their voices and is shocked to find his friends being viciously chased. "Duh, don't worry, guys, I'll save ya!" Billy quickly blocks the spear carriers with his shield and wallops each of them on their heads, knocking them out again.

Rebecca happily embraces Billy in a big hug. "Ohh, thank you so much for saving us, Billy!" Billy blushes slightly. "Duh, yer quite welcome, guys. If I may ask, please, why were them guys chasin' ya?" Unfortunately, before they could answer, Rebecca and Mojo hear the sound of heavy footsteps behind them and see a huge group of islanders wearing menacing masks and toting spears and shields approaching them. Overcome with fear, the two of them promptly faint on the spot. "Ohhhh..."

"Guys?" says a worried Billy. "Say guys, what's wrong?" He then looks up and sees the fearful figures surrounding them. "Uh, o-oh no," quickly remembering the whistle, Billy reaches for it, but accidentally drops it out of the pocket of his shorts. He then quickly reaches down, but accidentally picks up the tree branch instead and blows on it. "O-oh no, nuthin's comin' out, it mus' be broken! Guys...wait for me. Ohhhh..." Billy then promptly faints next to his friends.

Moments later, Rebecca, Mojo, and Billy slowly come to. "Uhhhh," Rebecca groans, rubbing her head. "Where are we?"

"All right," Mojo grumbles. "Who's been using my head as a bongo drum?"

"Oof," Billy groans. "What happened?"

Looking around them, the three are surprised to find themselves in an island camp. Just then they hear voices call, "Becca!" and look up to see the Powerpuffs flying up to them. "Girls!" Rebecca exclaims happily. "You're okay!"

Rebecca looked around and found her hands tied behind a pole, while Mojo and Billy are in the same position as they're all sitting down. Thinking quickly, Rebecca turns to her cousins and inquires, "Say, girls, could you use your eye beams to cut the ropes, please?"

"Sure thing!" Buttercup obliges, upon which the Powerpuffs quickly fire their eye beams at the ropes, allowing their three friends to break free. The girls then gently help the three to their feet. "Thank you so much for saving us, Powerpuff Girls!" says a very grateful Mojo. "You're quite welcome," replies Blossom with more than a touch of concern to her voice. "If I may please ask, though, how did this happen to you?"

"Well," Billy begins. "It all started when I wuz standin' guard after everybody else had left. I wuz standin' here, mindin' my own business, when I see dis skull walkin' around! Yeah, walkin' without nothin' or anything, so I picks it up and don't this birdie fly out 'n scare me! So I ran away, but then I finded this nifty shield(Though I admit I thought it was a violin at first) an' went back."

"And Mojo and I were roaming the jungle, looking for clues," Rebecca continues. "When suddenly we heard footsteps behind us. Just then, a bunch of masked natives carrying spears jumped us! We managed to knock them out, but they came to shortly thereafter and began chasing us again."

"Fortunately, Billy heard our cries and came to save us," Mojo elaborates. "He then quickly gave our pursuers what for, which is to say that he fought them off and rescued us, which is to say that he certainly socked it to the antagonists, by which we were then safe. No sooner had he done this, however, than a large group of spear carriers came after us!...And then we must have fainted, because that's all we can remember."

"Mojo'd given me a whistle ta blow in case a'trouble," Billy adds. "But when I picked it up, it musta' got broke somehow, 'cuz no sound wuz comin' out! So, then I got scared 'n fainted, too."

"We then woke up later and found ourselves in this strange place, with our hands tied behind our backs." Rebecca notes.

"Duh, yeah," Billy adds. "But then you came 'n saved us, then y'asked us what had happened, an' I told how I was mindin' my own business when dis skull came walkin' up to me, an'-"

"Um, Billy?" Rebecca interjects. "I mean no offense, but I think that you may be telling the story over again."

"Oh yeah," Billy chortles. "I musta' forgot!"

An angry look crosses Buttercup's face. "This must be the work of whoever those creeps who were chasin' you guys earlier were!"

"We'll have to find them and bring them to justice!" Blossom adds.

As she surveys the area around her, Rebecca then turns to the Powerpuffs and inquires, "Say, by the way, have you seen the others?" A worried look crosses Blossom's face. "No...They must still be out there somewhere."

"Oh, this is bad," despairs Mojo. "They might be in some sort of danger, peril, or treachery!"

"Well, there's only one thing to do," a determined Rebecca replies. "We'll need to lead an expedition to find our friends."

"Good idea!" Mojo, Billy, and the girls oblige. Rebecca then turns to the girls. "Can you use your x-ray vision to help us, please?"

"Absolutely!" the girls oblige.

"Thank you very much," Rebecca replies. "Now, let's find our friends and stop those creeps!"

Mojo said, "Well, I hope Sydney and the others are alright."

"Me too." A worried Rebecca replies.

Just then, the group hears a loud, merry "Ork, ork!" and look to see a familiar shiny black figure approaching them. "Sydney!" Rebecca exclaims happily. "You're okay!" Rebecca, Mojo and the girls hurry up and begin gently petting the seal's shiny fur.

"Duh, hey look," Billy says. "A shiny black puppy creature." Uh oh. They had forgotten that Billy hadn't seen Sydney yet. As they exchange concerned and somewhat perplexed looks, Rebecca whispers to Mojo, "Oh dear, I'd forgotten that Billy hadn't met Sydney! What should we do? Should we tell him?" She had recalled that Billy wasn't very good at keeping secrets. Mojo gives a doleful look. "Unfortunately, we may not have much choice now. We can only hope for the best."

Exchanging another concerned look with Mojo, Rebecca then turns to Billy and says, "Uhm, Billy, we'd like you to meet Sydney." The seal barks a happy, "Ork, ork!" and flops up to Billy. "Aww, nice li'l puppy creature." Billy coos as he gently pets Sydney's shiny fur.

"We met her back on the ship." Blossom explains.

"I feeded her a cookie!" Bubbles adds merrily.

Upon this, Billy removes a small box of cookies from his shorts pocket(Which he'd bought back at the beach house) and gives Sydney a cookie. "Here, li'l one." Sydney then happily eats her treat.

"As of yet, only Mojo, the girls, Ace, Deanna, Snake, April and I know about her," Rebecca elaborates. "We've been keeping her a secret, because we know that Uncle John wouldn't approve of her staying."

"Do you promise to keep our secret, please?" Mojo inquires. "We will all be in big trouble if the professor finds out."

"Duh, I promise I won't tell," Billy obliges. "Else we'd hafta' get rid a'her!"

"Thank you, Billy," Rebecca replies gratefully. "This means so much to us."

Rebecca and Mojo then exchange glances. "Well, this seems to have gone smoothly," Mojo whispers. "He seems to have understood."

"Yes," Rebecca whispers with some concern to her voice. "Though we may need to keep an eye to make sure he doesn't slip up."

"Good idea." Mojo whispers in reply.

A thoughtful look crosses Blossom's face. "Say...I wonder if maybe Sydney could help us track our friends."

"Sort of like a bloodhound?" Buttercup adds.

"Why, that's a very good idea!" Rebecca replies happily. "Do we have something of theirs for her to sniff?"

"Well, I'd found April's hair clip on her dresser back at the beach house," Blossom says, holding out the aforementioned. "I was hoping to give it back to her."

"And I found Arturo's comb," Bubbles notes. "He had accidentally left it behind, too."

"And I found an extra pair of sunglasses left behind by Ace." Buttercup says.

Mojo said, "These are good clues." Turning towards Sydney, he asked her, "Sydney, do you think you can sniff out April, Arturo, and Ace?" Sydney gave a bark in agreement and began to slug off to find a scent. The group followed after the seal as they trekked around the jungle.