The Equestrian Empire and The United Socialist States of Gryphonia (USSG) Went to war with each other at the beginning of the new millenium, over a border country called Chenarus. Something happened after the war that nopony ever expected...

About a week or so after the Equestrian Marine Corps expelled the USSG forces from Chenarus, Sgt. Major Dusk Shine and his team of ponies, attaches from the 3rd Equestrian Rangers Division, are assigned a simple mission: the Garrison in Electrozadvosk, called Electro by the soldiers, has gone silent. Fearing a counterstrike from the USSG imminent, Brigadier General Steele sends Dusk's team to check out the area, infiltrating by Huey. Things don't always go as planned though, and When dead ponies and Gryphons start to appear from nowhere in particular, well... you'll just have to see for yourself.