"Werroo werroo werroo," went the box we all know and love, but ponyville has never experienced this thing we call the TARDIS so we meet an unlikely couple as the journey to defeat Nightmare Moon. When Derpy Whooves heard these noises she got curious and went to see what it was. What she found wasn't from ponyville, that's for sure. A blue box and a weird pony stumbling out of it, not what she expected.