北京某高校机械物理学大神钟浩，为了帮助即将失业的开蒸汽小火车的父亲，计划将研究“超音速模拟现实装置”这项技术融入到蒸汽小火车中，帮助父亲解决失业问题，但与此同时，自己一直潜心研究的实验正到了最为关键的一步……
Declan has had no luck with the holidays: his girlfriend Stephanie broke up with him on the way to Christmas dinner. He's managed to keep it secret until New Year's Day, when his car breaks down and his sister Rachel shows up to help him fix it. Crumbling under her relentless curiosity, Declan is now on a crash course to confront the poor decisions of his life.
春水母女生活在广西大山深处，春水自幼丧父，和母亲相依为命，春水母亲受伤后，生活的重担压在幼小的春水身上，受妈妈性格影响，春水乐观善良，对生活充满希望。来山区采访的记者吕苗和春水母女结下了深厚友谊，受春水母女情感染，吕苗原谅并且与自己的养母消除隔阂。
