During the Equestrian Civil War, Griffonian mercenary commander Gallus Sharpbeak and his fellow groups of mercenaries were sent on a mission to scout and eliminate a hostile resupplying station in the depths of the Everfree Forest. However, as the mercenaries get closer to their objective, Gallus is picking up strange traits that aren't supposed to appear in their mission. He'd soon realize, that they're not the only ones hunting in the forest…