Single mom Maggie O'Donnell (Ashley Williams) is facing Christmas alone, until stranger Lucas Cavelli (Niall Matter) crashes into her life and becomes an unexpected house guest. Together, they overcome Christmas, while finding comfort in their growing bond.。本片描写一位母亲的家国情怀,爱子江山子承父业,通过严格的军事训练,执行各种抢险救援任务,赴汤蹈火,用汗水谱写忠诚,舍生忘死,用奉献诠释青春,竭诚为民的感人故事。。