It's World War Two in Amsterdam. Teenaged Lena leaves her starving family to travel by train with her friend, Sofie, to Almelo, a town close to the German border. It's a risky plan. They have false papers and are quickly pulled off the train by German soldiers. Only by fluke do they get back on again -- with the help of Albert, one of the other soldiers. After Lena discovers that the train had also been used to transport Jews to concentration camps, she fears her new friendship with the helpful Albert may lead her into more danger. Sofie, too, befriends a soldier, a relationship that quickly turns serious and has unforeseen consequences for both girls.