在不远的未来，人们熟知的地球已经不复存在。太阳挂在天上用不可思议的热度炙烤着地球已经整整四年时间了。在这种热度的摧残下，地球分成了两块——一块洪水肆虐，一块干旱无比。由于大饥荒，人类到了濒临灭绝的边缘...

孤儿海蒂（阿努克·斯特芬 饰）被姨母迪蒂（安娜·希恩斯 饰）送上了阿尔卑斯山，与远离小镇独居于高山的祖父（布鲁诺·甘茨 饰）一同生活。活泼的海蒂在这里如鱼得水，不仅收获了羊倌彼得（奎林·阿格里皮 饰）...

　　19-year-old Moritz and Hannes have been best friends ever since they were kids. Everything changes the day Hannes is the victim of a motorcycle accident and falls into a coma. Moritz is convinced that his friend will wake up soon.