Abby, Greg and Jenny are still searching for Peter. Greg and Jenny are becoming closer. They meet a man called Charles Vaughan (Denis Lill), a self-sufficiency expert, who has sobering theories about the number of survivors of 'the death' and their prospects for the future. He invites them to join his community, but it soon becomes clear that he has a hidden agenda which could involve Abby...

Abby is still searching for Peter and returns to his school. Meanwhile Jenny and Greg meet two children, John and Lizzie who are keen to join them. They have a lead which may help in the search for Peter. Before 'the death' some individuals, who were nicknamed 'the angels' by the press, foresaw the impending catastrophe and isolated themselves. It is thought that some of the boys from the school went to find them. Jenny, Greg and the children make an abandoned house their base, whilst Abby sets off to find 'the angels'...

A young woman called Wendy (Julie Neubert) and an old woman called Emma (Hana Maria Pravda) have foraged since 'the death' but are now going hungry. Wendy meets Tom Price (Talfryn Thomas) and steals his food. Abby meanwhile rescues Emma from a pack of wild dogs, whilst Greg, Jenny and the children draw them off in their minibus. Tom wants his revenge on Wendy but doesn't reckon on Abby's presence. Meanwhile Greg and the others arrive at a deserted country grange, which may be just the place they need...

Crippled Vic attempts to commit suicide because he is feeling increasingly useless. Greg tries to convince him that his teaching of the children is an important job. When Anne Tranter arrives at the grange she is shocked to discover that Vic is alive and that Greg therefore knows of her heartless actions when they first met (in Genesis). When Vic learns that Anne is actually staying at the grange he becomes intent on ultimate revenge...

Greg travels to a community at Whitecross to trade with its leader Charles Vaughan (Denis Lill) who he last met at Mardell. Jenny is now pregnant so Greg also seeks news of Ruth's whereabouts, as she promised to return to help with the birth. Whilst Greg is away, a fire destroys the grange. The survivors of the blaze are soon reunited with Greg, who leads the way back to Whitecross where they hope to stay, at least until Jenny has had her baby...

A couple called Penny and Amul arrive at Whitecross claiming to have news of Abby. Ruth goes with them thinking her medical skills are needed at the place where Abby is staying. She soon learns that she is being taken to London instead to help nurse the sick there and that Abby has already moved on. The large settlement in London is run by a man called Manny who does not want Ruth to leave. When Greg and Charles fear for Ruth's safety they journey to London to rescue her...

Greg and Charles arrive at the London settlement and are reunited with Ruth. She tells them she can't leave the sick there and come back to Whitecross, especially as her assistance will be needed if the community is to be re-located to the Isle of Wight as planned. When Ruth learns from Nessie that Manny has no intention of taking the community out of London, she agrees to an escape attempt with Greg and Charles...

When Mina (Delia Paton), an eccentric member of the community at Whitecross, spurns Hubert's unwelcome attentions, he begins to spread vicious rumours that she is a witch. When John and Lizzie see Mina bake a clay figure representing Hubert and Pet and Peggy add up other recent events, they begin to believe that Hubert may be right......