Paul Darrow's vivid reimagining picks up Avon's story at the final moments of the final episode of Blake's 7 and follows him on his fight for survival. The adventure continues years later as Avon, now an old man, finds himself a key player in the game of power politics being played out on a grand scale by The Quartet - four ruthless leaders in an uneasy alliance, who govern the world in place of the Federation. Old enemies resurface and dangerous new ones appear as the time comes for old scores to finally be settled.