Drunken from their triumph at Adrianople, the Goths set to the conquest of Eastern Rome and threaten the city of Thessaloniki. While the men of the German Cruiser Saarbrücken are still trying to prove their usefulness to the Roman Empire, the resistance against the time-travellers grows stronger.

Mighty clergymen scheme against the growing influence of the Germans, and on the Saarbrücken itself the seeds of treason are planted ... and not only there.