At the insistence of his fiancée, a contemporary Irish groom-to-be hesitantly consents to a bachelor weekend with his friends, venturing into the untamed landscapes of western Ireland. To their dismay, the group is accompanied by the bride’s brother, an eccentric and volatile alpha male dubbed “The Machine,” who embodies an untamed Id to their collective Ego. The Machine, a whirlwind of energy, leads the men as they are deprived of modern luxuries, conveniences, and eventually, their clothing, embarking on an adventure into the wilderness.