Continuing to fight for the resources necessary to contain the contamination, and realising the scale of the task ahead, Tracy needs to move out of her family home and into her office, to the dismay of her husband and son.As Nick fights for his life, his wife Sarah is beside herself with worry, but tries to remain calm for their daughters.As the decontamination efforts continue, Charlie, who lives in temporary accommodation, is delighted to discover he's been given his own flat. Dawn is thrilled for him.Several months later, Charlie fatefully rummages through a charity bin and finds what looks like a perfume bottle - but is actually a container full of Novichok.