this family can bear any

When Donnie gets his hands on the Arc Capacitor after the events of Out of the Shadows, he decides to repurpose the tech for his own use. Unfortunately the first test run doesn't go well, and he's accidentally transported to a different dimension. His first thought is to find the new reality's version of Donnie, so they can work together to find him a way back home, but while trying to find their lair, he finds a much different version of his brothers instead. At eight, nine, and ten years old, the young turtles are hopelessly lost in the sewers beneath the city, and their only chance at getting home is Donnie. Between finding a way to get four lost turtle kids back to their dad, and finding a way to get himself back to his own reality, he's got a lot to do.AKA the Rise/Bayverse crossover that exactly nobody asked for but I'm writing all the same. Updating Fridays.