During the Civil War at 17th-Century England, a small group of deserters flee from a battle that is ferocious through an overgrown area. Means of an alchemist, who forces the group to aid him in his search to look for a treasure that he considers is buried inside the specialty captures them. Crossing a vast mushroom circle, which supplies their first meal, the group quickly descend into a chaos of disagreements, fighting with and paranoia, and also, because it becomes evident that the treasure may be something other than gold, even they slowly become victim to the terrifying energies trapped in the area.