Lunar woke up with no memory of the past, and only knows two things, one: his name, two: something strange is going on in the world around him. He accepts the help of a mare named Ditzy Do (a.k.a Derpy Hooves) and the forced help of his new mentor, Star Swirl (The Bearded.) As a new member of the Royal guard, Lunar must also obey the orders given to him by the Princess, Luna.
Good time and bad times and sad times will all follow Lunars steps, but as friends will come and go, he will be faced with his greatest challenger. All in due time.