After a bad run in with some poison joke, Dash finds herself a young foal. She's back to her youngest state, and with no way of returning, (except for growing up, of course) will she ever live normally again? Twilight makes a promise to help her, but what Rainbow Dash doesn't know is that Twilight has always wanted a daughter. How far is Twilight willing to go to feel the thrill of parenthood by using Dash?