From the preview:
The nations of Khador and Cygnar are still reeling from their defeat at the hands of Cryx’s armies within the Thornwood. Meanwhile, the Protectorate of Menoth’s Northern Crusade seizes the opportunity to push into Umbrey while the besieged elven nation of Ios struggles to repel the skorne invaders at their gates. For Cygnar, a chance to retake the initiative emerges when an unusual Cryxian column is discovered heading south. The newly promoted Lord General Coleman Stryker marches to intercept, unaware of the true danger that awaits him.