Elsewhere, the riverboat was also headed back towards the same spot, with the different versions of Phineas talking.

"So a vortex opened, we got sucked in, and here we are," Medieval Phineas finished.

"Hmm, sounds like a rip in the space-time continuum," Ohio mused "that can't be good." "Say, don't they say that different versions of a person from different time periods aren't supposed to see themselves or they'll explode?" he asked.

"Well, since the space-time continuum is out of whack, the rules have no doubt been changed a little," Rhode Island replied.

"Good point," Ohio said "but we need to get ourselves back to their normal time, or who knows what will happen."

"If I had to guess, I'd say all of time as we know it will collapse," Rhode Island told him.

In another part of the boat, Princess Isabella had recovered and had everything explained to her. She then sat down and had a conversation with her other counterparts.

"So let me get this straight," 1914 Isabella began "you're a princess, and you're a fairy?"

"'Water sprite', actually," Isabel corrected her.

"Wow, you other me's are awesome!"

"What does that mean?" Princess Isabella asked.

"It means you're great; like really, really great."

"I like that word 'awesome'," she replied "I've got to try and use that one."

"So, what's the deal with you and Phineas," 1914 Isabella asked "are you two…"

"Engaged to be married? Yes, yes we are," Princess Isabella replied "well, not until we're old enough, of course."

"Lucky you," Isabel said "I took a magic potion to make myself bigger so I could get closer and spend more time with him. But every time I try to tell him how I feel, I get cut off!"

"Just keep at it," 1914 Isabella told her "if it's meant to happen, it'll happen."

"Thanks for saying that," Isabel replied "how about you?"

"Well, we're just friends so far, but I have been getting myself purposely kidnapped so Ohio has an excuse to rescue me," 1914 Isabella explained.

"Playing damsel is effective, but if you want Ohio to like you, you need to show him you're as capable as he is," Princess Isabella explained.

"Yeah, this isn't the Middle Ages, and I should know," Isabel added.

"Good point, I guess I just got used to the rescuing, and hugging him afterwards," 1914 Isabella replied "but you're right, there's no need to pretend to be helpless. From now on, I'll show him I can be as good of an archeologist as he is."

"You go, girl!" Isabel said.

"As much fun as this has been, I hope we'll be able to find our way back home," Princess Isabella said "Oh, I wonder if Regent Monogram has noticed I'm missing?"

China

"And you say there's no sign of her?"

"Sorry sir," Gen. Carl replied "she left to go visit Phineas & Ferb, but that was over an hour ago."

"I don't like this," Regent Monogram replied, as he walked out towards a balcony of the palace "it looks as though we have no choice; we need the help of Master Perry."

"But he's retired sir."

"I'm aware of that Carl," Regent Monogram said "but Phineas & Ferb were somehow able to reach him so they could save the princess. We too must find a way to get a message to the Unclimbable Mountain of Unclimbableness. Maybe with a catapult, or something."

"Actually sir, there may be one way," Gen. Carl added.

"Then hurry man!" Monogram told him "the fate of China may very well rest in Master Perry's hands. Wait, do platypi have hands?"

Elsewhere, Chinese Linda & Lawrence were also worried about their missing sons.

"I can't believe the boys aren't back yet," Linda added, worried "Candace, have you seen your brothers?"

"I think they said they were going to go work on that 'great wall'," Candace replied "pfft, as if that will last."

"Go get them please, we're worried about them being out there."

"Fine, whatever," Candace said, leaving the house "I don't care if Phineas does become regent when he's older, this still isn't worth it."

Medieval times

While this was happening, Candavere was in the backyard, hanging out with her boyfriend Jeremiad.

"So Jeremiad, have you ever thought about, maybe becoming a knight?" she asked.

"I dunno, the whole 'knight' thing isn't really for me," Jeremiad told her "I prefer travelling around, performing music for folks."

"Well sure, I love your music," Candavere told him "but if you were a knight, you'd get a cool looking suit of armor, and you could go around having great adventures and rescuing damsels…you know what, on second thought, being a knight isn't all that great."

"Would you like to hear my newest song?" Jeremiad asked her.

"Of course. Nothing could tear me away," she replied.

"Great, let me just get my lute," Jeremiah said, walking off.

Suddenly, a time vortex opened up underneath her, and she fell screaming into it.

"Okay, get ready for…Candavere?" Jeremiad asked, unsure where his girlfriend went "hmm, I thought she was going to listen to me play. Maybe she went back inside her house."

Jeremiad headed off to check on the location of his girlfriend. After he did, Parable arrived, having walked back from Malifishmertz's castle. Seeing the time vortex, he knew what he had to do, and dived in, with the vortex closing behind him moments later.

China

After much debate, Monogram decided to contact Master Perry via bow & arrow. An arrow with a message attached was fired at the Unclimbable Mountain of Unclimbableness. Master Perry saw the arrow land a few feet from where he was meditating. He picked it up and read it; realizing he was needed, he grabbed a kite and floated down, ready to help his country once again.

Meanwhile, Candace had made her way over to the Great Wall, but found no sign of her brothers.

"Oh, this is just terrific," she said angrily "you two better be around her somewhere, because I am not getting in trouble for this!"

She stood there, tapping her foot, as if waiting for them to come out, but they didn't.

"Now what am I supposed to tell mom & dad?" she asked "'sorry, but Phineas & Ferb seem to have disappeared into thin air.' Those two are sooooo busted when I find them. Oh well, at least things can't get any worse."

Just then, a time vortex opened up above her, and she felt herself being pulled upwards. She glanced up at the swirling vortex above her.

"Me and my big mouth," she replied, before screaming at the top of her lungs.

Master Perry, who was gliding on his kite, heard her screams and guided his kite towards her. However, it too was caught in the suction of the vortex, and both found themselves zooming upwards into an unknown fate.

Panama

"Okay, I'll just step through the vortex here into China, regroup my army, and join you guys later," Doofus Khan explained to his fellow Doofs. "China, here I…oof!" he was interrupted when Chinese Candace & Master Perry fell out and slammed into him.

"Ooh, where am I?" Chinese Candace asked, before noticing who she was sitting on "hey, aren't you that barbarian guy everyone hates?"

"Okay, that's a bit extreme. I'm sure some people like me."

"Hey, what's going on here?" Chinese Candace asked "where exactly am I? And why are there three of you?"

Before any of the Doofs could do anything, Master Perry grabbed Chinese Candace's hand, and before she could ask what was going on, ran towards the exit of the hideout, pulling her along.

"Stop them! If they escape, they could ruin everything!" 1914 Doofenshmirtz shouted.

"Forget about them for now," Malifishmertz told him "they have no idea what's going on, and even if they did know, who would they tell? Besides, once our plan is complete, they'll be our slaves anyway."

"Oh yeah, I forgot."

"Thanks for the help back there," Chinese Candace told Perry, as they made it towards the entrance to Doof's lair "I don't know what those ugly dudes were planning, but whatever it was, they clearly didn't want us knowing about it. I'm Candace, by the way."

She was greeted with silence "you remember me right? I climbed up your mountain, looking for my brothers. Speaking of which, I still need to find those two, so I can bust them. I wouldn't be surprised if they were involved in this somehow. If that's the case, they are so bust…"

The girl was cut off when she and Master Perry made it outside the lair. She noticed the lush forest of Panama and realized she had no idea where (or, in this case, when) she was.

"Something tells me we're not in China anymore."

Next time, the two Candaces meet and plan a time-spanning bust, while our heroes try to uncover Doofenshmirtz's plan.