Leo is usually the oldest in the show, but what if he was the youngest? What if Leo gets sent to the 2k12 universe along with his brothers? What if Leo gets hurt by the 12!turtles? How will his brothers react? Setting: an alternative version of the rise tmnt ( before second season & the movie) ended up in the 2012 versions world (after 2012 final season ended). Credit of au goes to the original creator: https://archiveofourown.org/users/Rain_the_magician/pseuds/Rain_the_magician