奧斯卡今年10歲，因為媽媽去了美國，他只好與壞脾氣的外公同住。夏天到了，他和新朋友李維計劃帶著李維的馬一起划船度過大西洋，去找奧斯卡的媽媽。今年夏天一定很精彩。

　　April 1940. The eyes of the world are on Narvik, a small town in northern Norway, source of the iron ore needed for Hiter's war machinery. Through two months of fierce winter warfare, Hitler is dealt his first defeat.