London, 1921: Ex-Secret Service spy Jack McColl is in prison serving a trumped-up sentence. Then his former Secret Service boss offers McColl the chance to escape his jail sentence - if he takes a dangerous and unofficial assignment in Russia. With the knowledge that he is probably walking into a death trap, McColl sets out for Moscow, the scene of his last heartbreak. Little does he know that his mission will throw him back into Caitlin Hanley's life - or that her husband will be one of the men he is trying to hunt down.
