Downdraft is an action thriller following the life of a young woman, Avril Lurton, whose family perish after a horrific event sweeps across London then England. Avvy turns from a young office clerk into a knife throwing survivor, as the world around her is reduced to a wasteland where the rotting affected easily outnumber the displaced uninfected. After an encounter leaves her with a strange injury her crusade takes her south, and so she becomes a drifter who is still in a state of confusion but coping as best she can. When she rescues a young American, Rob Lester, who hides a dark secret, they go in search of the cure she craves. The trust in their relationship slowly develops, as does her condition and, although Rob initially threatens Avvyâ€™s very mortality, he lets her stay by his side. Rob sees no need to be worried and takes the opportunity to double his strength. As the trip continues their skills are honed and refined, they learn to move with stealth as a team, their senses growing alongside their abilities. Avvy knows strange things are happening inside her, even looking at Rob through different eyes. New challenges are faced every day, their strengths and weaknesses to become their new routine. Both Avvy and Rob grow within their new surroundings, the alterations obvious as they utilise their talents. Their final battle finds them escaping another half dead mass, which in turn opens the door for Rob to tell the truth of his story. Thereâ€™s a reason why heâ€™s never been infected, and this he explains whilst trying to tell Avvy he loves her. Their lives seem to be over, especially through the girlâ€™s eyes. Rob has to make a choice, so does Avvy. The end leaves them head to head. Though they have both grown into strong individuals, with the ability to survive alone, suddenly they realise they can no longer live without the other.