In 2nd-Century Britain, two men - master and slave - venture beyond the edge of the known world on a dangerous and obsessive quest that will push them beyond the boundaries of loyalty and betrayal, friendship and hatred, deceit and heroism. Adapted from Rosemary Sutcliff's classic novel The Eagle of the Ninth.

In 140 AD, the Roman Empire extends all the way to Britain - though its grasp is incomplete, as the rebellious tribes of Caledonia