珀西在平安夜发现了一封不小心落在圣诞老人邮车里的孩子的信后，必须追踪圣诞老人。平安夜，珀西发现一封孩子写给圣诞老人的信被遗忘在他的邮车底部，但他决心纠正错误，即…

　　Follows Nikki Parker after she joins the LAPD's Missing Person's Unit to help other people find their loved ones at t…