Ash from Evil Dead and Guts from Berserk are traveling together in the forests of the Empire of Man. They stumble across a small town with a local wise-man who upon seeing Guts tells him to leave as he gives off bad vibes. Then when night falls an army of Deamons appears due to them sensing Gut's brand of sacrifice. The army is made up of Bloodletters, Plaguebearers, Daemonettes, Horrors of Tzeentch, Flesh Hounds, Plague Drones, Fiends of Slaanesh and Screamers of Tzeentch. The army is led by a Daemon Prince of Khorne riding a Juggernaut, a Daemon Prince of Nurgle, a Daemon Prince of Slaanesh riding a Steed of Slaanesh and a Daemon Prince of Tzeentch.
The ringleader so to speak is Be'lakor. So, yeah long story short Be'lakor comes over with a possy to look for a disturbance.