Ari suspects the Romans of rebuilding their forces, so he seeks the help of an eastern tribal chief, Marbod. Ari's brother, Flavus, arrives in Germania.
In AD 9, Germanic warriors halted the northward advance of the Roman Empire, at the famous battle of the Teutoburg Forest. The bloody encounter of two worlds is interwoven with the destinies of three young people who journey from innocence to guilt, loyalty to betrayal, and love to hate.