Donut Joe, also known as Mane6 Agent Con Mane, is once again forced out of retirement when Roseluck, a pony from the Griffon Nest, land conquered by the Griffon Kingdom’s empire, says that she will defect to Equestria and deliver to them the Griffon’s Grimoire, a magical spell book that can control the Griffons’ expanding Storm Cloud. Her one condition is that Agent Con Mane be the one to smuggle her out. MARE recognizes this as an obvious trap but sends in Joe anyway in order to get the Grimoire. What they don’t know is that the ones behind the trap are the criminal organization known as DISCORD, who are attempting to pit Equestria and the Griffons against each other. Joe must deal with not only SkyClaw, the Griffons’ specialized military, but also the agents of DISCORD that hide in the shadows, including an anonymous pony with a heart filled completely with chaos.