Mr. Maple is a quiet syrup-making pony whose never done anything exciting in his life. In fact he's never gone 10 miles from his small family farm (though can it be called a family farm when he's single?) or the town of Quiet Meadows. And he has been satisfied with that... until now. The urge to see some of the wonderful sights in Equestria grows in his heart and Mr. Maple decides to take a vacation!
He'll ride on a train! See the sights! Buy souvenirs!
Topple criminal empires! Save beautiful damsels! Alter history itself!
...not that he'll realize he's doing any of that.
Its a comedy of misunderstandings and miscommunications that will see the most simple of ponies change the destiny of Equestria itself.