Lucky Stripes' a pony passing through Ponyville, and almost nopony there has seen him before. After a chance meeting with Applejack, he goes on with more errands and meets the Mane 6. Lucky might just have left quite the impression with them with his actions, even though he's just a random stranger. This encounter with the 6 friends might just have been the luckiest thing that's happened to him. Or it might not. Meeting the 6 friends makes him go through a personally tough time, and he has to sort it out.