In the borderless Europe of the 21st century, one border still separates Spain from France, marked by the Bidasoa River. On this river lies Pheasant Island, a tiny piece of land that alternates between Spain and France every six months. When the body of an illegal immigrant is discovered on the day of the border shift, Nassim, one of the survivors, becomes the target of a violent manhunt by French authorities as he tries to cross the border. This chilling event will change the lives of Laida and Sambou, an interracial couple.

1937年的巴斯克地区。战争爆发后，卡梅勒和她的家人被迫离开家园，逃往法国。在那里，她联系上了流亡中的巴斯克文化大使馆，他们通过音乐和舞蹈来对抗战争。正是在那里，她遇到了小号手托明，并爱上了他。在委内瑞拉生活了一段时间后，这对夫妇怀着重新夺回失去的一切的希望回到了故乡。