After first contact was made with Canada and Equestria everything went fine. A standing link between Earth and Equus, trade run through a doorway, an easily controlled border, but for the US it wasn't enough. Soon after contact the CIA sends several agents to Equestria, some transformed into ponies, griffons, zebras, whatever helped them melt into society and steal Equestrian secrets.

But exposure to the magical land soon has some odd effects on the agents.

These are those agents stories.