Use this as a tool for your locked and private stories to cover up major reveals or plot twists. Also Use It To Make It Mean You Can't Find The Person For The Role.
After Splinter declares their training to be complete, the four turtles are allowed to finally leave the sewers and explore the big city. However, they would soon enter a conflict with a rival gang of mutants led by Old Hob, discovering the truth of their origins along the way.