The inhabitants of the British Isles have lost their battle against the onslaught of disease, as the deadly rage virus has killed every citizen there. Six months later, a group of Americans dare to set foot on the isles, convinced the danger has come and gone. But it soon becomes all too clear that the scourge continues to live, waiting to pounce on its next victims.
Quan is a humble London businessman whose long-buried past erupts in a revenge-fueled vendetta when the only person left for him to love – his teenage daughter – dies in a senseless act of politically-motivated terrorism. His relentless search to find the terrorists leads to a cat-and-mouse conflict with a British government official whose own past may hold the clues to the identities of the elusive killers.