Before he can become the Greatest Roman of them All, Julius Caesar must fulfill the Druid prophecy and place his foot onto the lands of two more enemies; the Germans and the Britons. In Gaul the legions are gathering and Iron Shaft rejoins the Legio X only to find that he is already in trouble with the General. He is first given the task of sorting out the cavalry, a strange task for someone that horses hate, but in doing so he finds and rescues a new friend. After seducing the exotic daughter of a vicious enemy, a mysterious murder of an important Roman tribune and a brief invasion of Germany, Iron Shaft and his new friend are sent to Britain to prepare the way for a visit by Caesar. Once again sex, politics, Druids, horse races and even frogs complicate the life of Iron Shaft during Caesar's "friendly visit" to the King of the Cantiaci across the Narrow Sea. Storms wreck the Roman ships, stranding them in a land growing more and more hostile to their presence, and the schemes of the black Druids threaten the life of the King and the safety of Caesar. What is Iron Shaft going to do? He uses a technique for which is is admirably equipped. He is not called Iron Shaft for nothing!