Nala, a 13-year-old girl from the city, travels with her family to her grandmother's home in the countryside, to try to find a cure for her little sister's mysterious illness - But she'll soon find her granny is not exactly what she seem…

　　佩德罗-德-托罗和他的家人住在一个隐蔽的地方，一个拥有尖端技术的房子/掩体里。佩德罗想离开他用自己的财务知识帮助过的贩毒集团，这是他计划好的一切结束的夜晚。患病的10岁女孩莉娜突然来到安全屋，与此同时，一群将高科技与中世纪武器相结合的职业刺客也来到了安全屋。德托罗的家人似乎将被卡特尔屠杀，直到他发现凶手的目的：杀死无辜…