Four soldiers from the Spanish Blue Division who participated in the German invasion of Soviet territory are imprisoned after the expulsion of Hitler’s forces. They are sent to forced labor camps, and the only way they have to live a better life there is by renouncing their Spanish nationality. Only two of them accept this condition, but the other Spaniards begin a struggle to maintain their loyalty to Franco’s values, led by Captain Adrados, who is responsible for branding as traitors all those who give in to improve their conditions. (FILMAFFINITY)