In the city of Metropolis, the wealthy ponies live on the surface, and spend their hours having fun.

Meanwhile, underneath the surface, the worker ponies, those who were not born to the upper class, work the machines that run the highly technological city. Many of them have never even seen the surface, and most hold a dark hatred towards their leaders.

This is the tale of that long-lasting division of wealth and of how two ponies did everything they could to put it to an end.