List of Crossover Nexus episodes

Season 1

 * 1) Mojozilla - After being defeated yet again by the Powerpuff Girls, Mojo Jojo threatens Blossom to give him a sample of Chemical X from Dexter's laboratory transforming into the monstrous Mojozilla who wrecks havoc upon the city and its up to Dexter and Blossom to set things right. Meanwhile, Dexter's lab monkey with superpowers fights Mojozilla.
 * 2) School Of Sorcery - The Powerpuff Girls are sent to Toadblatt's School Of Sorcery where they meet Billy, Mandy and Grim as well as Dexter who is just there to disprove magic is real. Unfortunately, our heroes are constantly troubled by Lord Moldybutt and since they are unaware who is the cause of the trouble, it's up to Courage to save the day.
 * 3) The Essence Of Kendo - While fighting Doctor Diablos, Buttercup lets loose of her anger and almost kills a dozen people. Professor Utonium decides to sign her up for kendo classes with Sensei Jack. But when she badly injures a student leading to a parent-teacher conference, its up to  Sensei Jack to teach Buttercup to resist her anger before Doctor Diablos strikes back.
 * 4) Sugar Rush - After the Eds introduce her to jawbreakers, Bubbles becomes addicted to them and keeps a whole stack of them everywhere in the house. The next morning, she finds them missing and suspects either the Eds or one of her sisters stole it and along with Courage, tries to find out who is the real culprit and get him/her to buy her another stack of jawbreakers.
 * 5) Paranormal Activity - After returning from trick or treating on Halloween, the girls return to their house and find out warnings all around the house telling them to leave the house. The girls, at first, think of it as a prank, but eventually get scared as the Professor and Courage become paranoid and the gang has to outsmart the evil spirit inhabiting the house.
 * 6) Princess Delightful - The Powerpuff Girls find the Kids Next Door suspicious and follow them around. Eventually, when the KND reveal themselves to be good guys, the two groups find themselves surrounded and attacked by Princess Morbucks who has now become a part of the Delightful Children From Down the Lane and the two groups have to team up to outsmart them.
 * 7) Back To the Past - Blossom has an upcoming History test so Dexter allows her to use his time machine to experience the lesson herself. Unfortunately, the time juice has ran out so the two use Dexter's best friend, Otto's time machine as he is a member of the Time Squad. Unfortunately, Larry's mind is hacked by someone who forces Larry to cause trouble during the trip and gets everyone stuck in the past.
 * 8) Everything's New - When New Mandy comes back from the grave, she brings a 'new' version of almost every citizen and tries to take over the city. The Powerpuff Girls try to stop the News but are unfortunately captured into a zoo where all the humans are kept. With Courage and Grim's help, everyone is able to escape and defeat the News.
 * 9) Operation: Domination - All the super heroes in the world win a trip to Bunny Island.