The death of his wife Olga from the treacherous traitor Ivan Ogareff throws into disarray the brave captain of the Tsar, Michael Strogoff . He is recalled to duty by the Tsar himself, who instructs him to save the young heir to the throne of all the Russias, the Tsarevich Boris in danger of being taken prisoner by the Tartar chief Feofar Khan who is leading a revolt against the Tsar. Strogoff departs in disguise for faraway Siberia and on the train meets the cute French journalist Jules Vermont. Meanwhile, little Boris has found temporary protection at the house of Count Krasov and his daughter Nadia and from here is conducted safely to an orthodox monastery. The evil Ogareff takes hostage the Earl Krasov and forces his daughter Nadia to take the same train that is carrying Strogoff to Siberia to betray him to the Tartars. The train is attacked, but Strogoff saves and manages to reach the small Boris. Nadia is again taken from Ogareff, but manages to escape thanks to the intervention of Sangarre , a beautiful gypsy lover and victim of Ogareff . Strogoff and little Boris, in the meantime, in the disguise of two simple peasants, end up in the camp of the ferocious Feofar Khan. Taking advantage of a secret passage, Nadia and her father come out of the prison, but their escape is short: Count Krasov is killed by the Tartars and Strogoff is taken prisoner, although his strength allows Nadia to escape. The courier of the Czar is greeted nobly by Feofar Khan, who invites him to betray his king, but Strogoff refuses and Feofar condemns him to death. Nadia returns to the field to try to save Michael but is taken prisoner. Locked in the same cell, the two declare their love for each.