USA 1964: Three young men are arrested on suspicion of speeding. As it turns out, they are employees of a civil rights center in Mississippi who are fighting against the racist Ku Klux Klan. The disappearance of the activists leads to a political scandal in the USA. There are riots and demonstrations against the president's civil rights policy. Despite smear campaigns in the south of the USA, a trial is held in which the background is to be clarified. But the real perpetrators have their own laws...

The military officer Manfred von der Lohe has just been on a training course in the USA. During atomic bomb tests there, he was radioactively contaminated and has been incurably ill ever since. In order not to endanger the planned nuclear armament of the Bundeswehr and the economic interests involved, von der Lohe and his wife Eleonore are to disappear. But the couple turns to Professor Soltau, an anti-nuclear activist. Their goal is to inform the public about the danger …