Travelling through the cosmos was Professor Paradox, Ben 10, his team and The Secret Saturdays "So Professor" said Ben "Who are we recruit next?" and Professor Paradox thought for a minute and then said "Do you remember Rex Salazar Ben, one who can change his limbs into machines?" then Ben had a flashback when he and Rex were fighting a giant monster from another dimension "Yes I do indeed" he said "Good" said Professor Paradox "Because we are travelling to his universe first!" and Ben shouted "YESSSS!" and then a light blue portal appeared and they all went into it.

Meanwhile on another Earth, in New York City, Rex Salazar was fighting a giant squid monster with Agent Six and Bobo Haha "We need to stop it" said Six "Don't worry Six I get it cover" said Rex and he jumped into the air and his hands turned into massive orange gauntlets named The Smack Hands, but then the giant squid monster get him and throw him into the ground "Ow" said Rex and Six shook his head "We so need help" he said "And help you will get it" said Professor Paradox's voice "Monkey was that you?" asked Six "No" said Boba "It was me" said Professor Paradox coming out of a light blue portal with Ben 10, his team and The Secret Saturdays "Hello Rex" said Ben "Ben, is it you?" said Rex and Ben needed his head and Rex smiled at his old friend "Its been a while since we met" said Rex whiling getting up "Yes it has" said Ben and he turn to the giant squid monster and Rex walked beside him "Hi Ben" said Bobo "Remember me?" "Bobo Haha," said Ben "And you were in a coma when I and Rex first met" looking at Six "Yes I was," said Six "And I don't get your name," said Ben "Its Six, Agent Six," said Six "And We need to stop that EVO" pointing to the giant squid-like monster and Ben dale the Omnitrix and changed into Humungousaur, Kevin touched one Bobo's laser pistols and his whole body turn red and turn his leaf hand into a big hammer, Gwen had two pink mana discs on her hands, Rook got out his Proto-Tool and The Secret Saturdays all pull out their weapons and all of them change at the giant EVO squid monster and after a long big fight, it was down and Rex change it back into a human.

Then everybody was at The Plant were they met Doctor Rebecca Holiday and White Knight "So," said White Knight "All you are from a different universe?!" "Yes we are" said Professor Paradox and while he was talking to White Knight, Ben was interviewing his team to Rex "This is cousin Gwen" said Ben "Hi Rex" said Gwen holding out her hand "Hi Gwen" said Rex shaking her hand "And this my best friend Kevin" said Ben "Hi Rex" said Kevin holding out his first "Hi Kevin" said Rex first butting his first "This my Grandpa Max" said Ben "Hello there Rex" said Max holding out his hand "Hi Max" said Rex shaking his hand "fourthly This my partner in The Plumbers Rook Blonko" said Ben "Hi Rex" said Rook holding out his hand "Hi Rook" said Rex "And finally his girlfriend Kai" said "Nice to met you Rex" said Kai holding out her hand "Hi Kai" said Rex shaking her hand "And also this is my dog Zed" said Kevin looking down at Zed and Rex pet Zed on her head "He's very cute" said Rex "Its a she" said Kevin "Oh" said Rex "Then She's very cute" "And over there are The Secret Saturday" said Ben pointing to The Secret Saturday "Hi Rex" them said "Hello there" said Rex "So you need our help to save all of existence" said White Knight "Yes indeed" said Professor Paradox "Well I in" said White Knight "Me too" said Rebecca "Good" said Professor Paradox "But we are not done in this universe, because we need the help of your friend Rex" looking at Rex "Really?" said Rex "Really" said Professor Paradox and with a snap of his finger another light blue portal apperenced "Take this portal and it will lead you straight to your friend's house "Okay" said Rex and he went into the portal and came out the other side by friend's house "Wow" thought Rex "Portals are so faster then driving" then he rang the door bell and a blonde teenage boy with blue eyes opened the door and it was Rex's human friend Noah Nixon "Hi Rex" said Noah "Hi Noah" said Rex "Noah my team needs your help" "Really?" said Noah excited "Really" said Rex "just go though his portal with me" pointing to the portal "Okay" said Noah unsure, but he followed Rex though the portal and they came to The Plant on the other side "Wow" said Noah "Portals are so fast" "Yeah I know" said Rex "Hello Noah" said Professor Paradox "How do you know my name?" said Noah looking surprised at Professor Paradox "It's one of my powers, I have enhanced knowledge" said Professor Paradox "Well that explains a lot" said Noah "Rex, we also need your old gang help from Hong Kong" he said and with a snap of his finger another light blue portal apperenced and Rex went into it.

Meanwhile in the sewers of Hong Kong Rex's old gang and his girlfriend were being chased by Providence agents, but then they reached a dead end "We are trapped!" said Cricket "And we can't go back" said Skwydd "Could we just take down those Providence agents" said Tuck "No, because there 26 of them and only four of us" said Circe "We need a miracle" said Tuck and then a light blue portal appeared and Rex stepped out it "Hello everybody" he said with a smile "Rex!" said Circe and then she ran to Rex and hugged him tight "Wow, easy there Circe" said Rex "Rex" said Tuck "How did you get here?" "I was sent by someone and he needs all of your help to save all of existence," said Rex and everybody else were shocked "If all of you don't believe me, just follow me through this portal" and they did it and everybody ended up back at the Plant! "Wow," said Tuck "That was fast" "I know," said Rex "Welcome to the Plant" and his old gang and his girlfriend were shocked by their surroundings "Hello there," said Professor Paradox "I'am Professor Paradox and I was the "someone" who sent Rex to get all of you and all of you should know why?" "To save all of existence," said Circe "Correct," said Professor Paradox with a smile and after Rex interviewed his gang and his girlfriend to Noah who was now in a Providence agent uniform and Rebecca was in one too, Ben, his team and The Secret Saturdays, they were all ready to next dimension.

Then with their new recruits, Paradox was leading them to another Earth "So" said Zak "Who are we recruiting next Professor?" "We are going to recruit a sixteen-year-old boy named Daniel "Danny" Fenton (AKA) Danny Phantom, his older sister Jazz and his friends," said Paradox "Why?" said Kevin "Because he is Half-human/Half-ghost," said Paradox and everybody else gasped "Wow," said Ben "So if he's Half-human/Half-ghost, that means he will have ghost powers like Ghostfreak" "Yes indeed, but sunlight doesn't hurt him," said Paradox and with it, another light blue portal appeared and everybody went into it.

Meanwhile on another Earth, in a town named Amity Park Danny Fenton (AKA) Danny Phantom was his ghost form, fighting Nicolai Technus with his girlfriend Samantha "Sam" Manson, his best friend and the mayor of Amity Park Tucker Foley and his older sister Jasmine "Jazz" Fenton "You may have perfect your duplication, but that isn't enough to stop me this time Ghost Boy" said Nicolai shooting at Danny's doubles while controlling all the technology in Amity Park "Oh really" said Danny dodging lase blast from Nicolai while Sam was shooting at Nicolai with The Fenton Blaster. But then something hit Nicolai and he went down "Nice one, Sam" said Danny "But it wasn't me" said Sam "It was me" said Rex coming out of a portal with the rest of Paradox's team "Quickly" said Paradox "Surround Nicolai Technus" while pointing Nicolai and they did it "Who are all of you and how you know Nicolai Technus?" said Danny "I will explain later Danny" said Paradox and he turned back to his team and Nicolai and Ben turned into Big Chill and shot ice at Nicolai "Ow" he said "That was freezing cold" "Its the main idea" said Big Chill and then rest of the team attack Nicolai and then he was down, then Danny suck him into a Fenton thermos "Now who the heck are all of you" said Danny "Not worry young Daniel" said Paradox "We are here recruit you, your friends and your sister!" "Why?" said Danny "Because all of existence needs saving!" said Paradox "And we need your help!" Danny was in shock about this "You mean I will have to leave my parents on their own to protect Amity Park" he said "No, because I can travel in time, we can be back here in 1 second flat after we leaf" said Paradox and then Danny's face light up "Then let's go" said Danny and then he, Sam, Tucker and Jazz went into a portal with Paradox's team and on to next the Earth!