A female American reporter searches for her missing brother against the backdrop of violence and human smuggling across the US/Mexican border. Inspired by true events.。姆明谷今年的冬季似乎不太寻常，所以姆明决定出发大冒险，而不是如常去冬眠。冒险之旅中姆明发现奇怪的生物在黑暗寒冬中冒雪奔驰，所有新的暗示意味着一位古怪的客人即将来临……。