杰克（迈克尔·基顿 Michael Keaton 饰）是一位功成名就的音乐家，在事业上取得了硕大的成功，这也就意味着，他牺牲了大部分陪伴家人的时间，杰克的儿子查理（约瑟夫·克罗斯 Joseph Cross 饰）对此一直感到闷闷不乐。某日，杰克回到家，和查理一起堆了一个大雪人，杰克送给查理一只口琴，父子之间许下承诺。 圣诞节将至，杰克决心和家人们共同度过这个温馨的节日，然而，就在他驱车回家的路上，发生了严重的车祸，杰克亦因此丧命。失去父亲的悲痛和绝望笼罩着查理，整整一年，查理的家庭都生活在悲怆而又压抑的气氛中。一晃眼，圣诞节又到了，查理想起了和父亲的约定，他堆了一个雪人，然后吹响了父亲送给他的口琴，希望父亲能够如同承诺的那样，再度回到他的身旁。
Towering over the Alps, Mont Blanc has enraptured mountain climbers, athletes and tourists, all of whom are drawn to the beauty and the challenges the peak offers. It has become a mecca as a proving ground for extreme-sports enthusiasts, but incredible danger lies on the steep slopes. Here, we witness the journey of conquering the mountain from two perspectives: a skier recovering from injury hopes she can brave the summit; and a mountain rescuer works saving lives while maintaining a personal goal of traversing the entire range—in 24 hours. Incredible footage captures both the wide scope of these intimidating pursuits, as well as up-close personal views that keep us right in the action. With the ice melting as a result of climate change, these journeys may be some of the last possible on one of Earth’s mightiest mountains.
