It is a period of civil war. Rebel forces, striking from a hidden base, have won their first victory against the evil Solar Empire. During the battle, rebels managed to steal the Empire’s ultimate weapon, a hippogriff slave named Silverstream, intending to use the young creature as leverage against the diabolical ruler of the Empire, Empress Celestia. Pursued by the Empire’s sinister agents, General Hawk Nightwing races home with the liberated slave who could possibly give the rebels the information they need in order to save their ponies and restore freedom to Equestria….