Teenage Mutant Ninja Turtles at Monster High

This Crossover Series takes place after the events of season 3 of Teenage Mutant Ninja Turtles 2012 where Karai returns to Shredder's good side to become his true daughter. Things seem to be fine but until Donnie made a dimension portal that transported The Turtles, Shredder and Karai to the Monster High Universe where they befriended by the Monster High characters and enroll at Monster High. In this new season of Teenage Mutant Ninja Turtles Donnie develop a crush on Frankie, Raph becomes friends with Clawd, Mikey becomes friends with Heath and Venus develop a crush on Leo. Karai reveals that her real mother is Torelai and she's also Shredder's wife. They stay over at Frankie's house while they are staying this universe and Frankie's dad helps Donnie into making a way back to the Turtle's universe. But in this new season old enemies return and new ones come to life.