London, 1868. Jack has traded the battlefield for business, running a thriving club in the backstreets of Whitechapel. But this underworld has rules and when Jack refuses to comply, he finds himself up against the East End's most formidable criminal - with devastating consequences. A wanted man, Jack turns to his friend Macgregor, an ex-officer, treasure hunter and his ticket out of England. Together they join the British army on campaign across the tablelands of Abyssinia to the fortress of Magdala, a high-stakes mission to free British prisoners captured by the notorious Emperor Tewodros. But life on the run can turn dangerous, especially in a land ravaged by war.