Running from Chicacolt to San Franciscolt is a railroad called the Union Pacific. It's the largest railroad in the United States, and is run 由 thousands of ponies. This is the story of some of those ponies that run the rails, aka railroading.

Episode 1: New worker

Cheyenne, July 26, 1950

Coffee Creme: *walking on platform*
Orion: Hey, are 你 the new 火, 消防 mare?
Coffee Creme: Yes.
Orion: Alright, you're working with another 小马 on that passenger train. You're going to Las Pegasus. Good luck on your first day.
Coffee Creme: Thanks *walks to engine*
Hawkeye: Hi, 你 must be my new 火, 消防 mare....