S01E01 Frontier Fort
Obsessed with discovering the fate of his father's lost legion, Marcus arrives in Britain to take command of a frontier fort. He makes friends with Cradoc, a British warrior, and all seems peaceful. Then, on...
His wound healing after a painful operation, Marcus considers where his future now lies. A Roman commander visiting his uncle tells him of a rumour that the Caledonian tribes are about to rise and that the Eagle of the Ninth is in their hands. Marcus and Esca go north to recover it.
In Britannia in 130, a young Roman officer named Marcus Flavius Aquila and his freed slave Esca search for the Ninth Legion's gold eagle standard, which vanished with the legion 13 years earlier.