Cassy accidently finds himself in a prison vortex made by donnie to keep the more mutinish villians off the street of New York. The timing couldn't be better (In the middle of a prison revolt being planned)
Cassy and April go undercover as new prison inmates to see who's running the show and to turn the other inmates against each other while donnie tries to find a way to bring them back without releasing all the convicts along with them
April went in latter after finding out cassy was 'lost'ish in the dimension, uses her teleconisis to communicate with Donnie back home
Alternate, Cassy is undercover alone
Donnie's working on the detention device
And April connects all of them mentally to check in with each other
Lots of Flirting
Disclaimer:I don't own tmnt just the idea and they're up for adoption
