The fabled Spanish hero Rodrigo Diaz (a.k.a. El Cid) overcomes a family vendetta and court intrigue to defend Christian Spain against the Moors.
The death of Marcus Aurelius leads to a succession crisis, in which the deceased emperor's son, Commodus, demonstrates that he is unwilling to let anything undermine his claim to the Roman Empire.
Norwegian resistance tries to stop German efforts to produce an atomic bomb component during World War II.