Greg is looking for a Dr.Adams who he thinks is being held captive. He is attacked by four men who steal all his notes on the settlements he has visited. He survives the encounter but runs into further danger when he finds Dr.Adams, who has contracted smallpox. Greg must now wait until the incubation period is over to see if he has contracted the disease...

Charles searches alone for Tom Walter and has a dangerous encounter with a dog pack. He is rescued by a man called Fenton, who Charles then travels with back to his halfway house. The next morning Charles discovers that Fenton has contracted rabies. Securing Fenton he goes to a nearby village for help. Charles returns with two men, Sanders and Jim. They are attacked by Fenton and Charles is forced to kill him. However, the men believe that Charles may have the infection too so try to execute him. Charles flees into the countryside and a hunt begins...

Jenny, Charles and Hubert meet vet Janet Millon when a shepherd friend of Hubert is injured. Whilst enjoying her hospitality they discover to their amazement that she is the mother of their John, who is back at Challoner with Pet and Jack. Jenny has grown tired of her search for Greg and elects to return with Janet, as she wants to see her son too. When Pet tells John the news his reaction is puzzling...

It is six months since Greg, Agnes and Jack left Whitecross. Seth finds Jack wandering in a fever in some woods and takes him back to his home to look after him. There finds that Jack has letters for Charles and Jenny which are from Greg. Charles, Pet, Jenny, Hubert and the children have moved from Whitecross to Challoner. When they learn the news about the letters, Jenny and Charles go to Seth's home. Jack is delirious and says some unintelligible things about a place called Wellingham, where he and Greg had been. A distraught Jenny is desperate to see Greg again, so she and Charles head off to Wellingham. Pet also sends Hubert on after them. After rescuing a man staked out in the woods and meeting the authoritarian Clifford and the sinister Miedel, Jenny and Charles become worried about the situation in which they have become embroiled...

Jenny is searching for Greg alone. Not far away Greg is travelling with Agnes when they come across an old woman in distress. She introduces herself as Mrs Butterworth and explains that she is being plagued by what she terms 'red indians'. Greg investigates and discovers a community of children are behind the raids on her house. They are led by a tough boy called Eagle who does not want Greg to interfere, despite the fact that many of their number are dying of a mysterious illness...

Charles, Hubert and Jenny are reunited with Agnes, who has become separated from Greg. They visit the Walter's family farm, where Greg and Agnes met Tom Walter and his family some months ago. However, the farm is deserted as Tom' mother, Edith, and her sons Steve and Owen were driven from it, when Tom was away, by former butcher Brod, to a camp by a railway line. Charles, Jenny, Agnes and Hubert are captured and taken there as well. Brod has special plans for Jenny and sees Charles as a threat to his position...

Charles, Jenny and their ever growing party are heading North to Scotland, when they receive a message to meet Greg at a place called Felbridge. Jenny thinks it will be another wild goose chase. They later discover that Agnes has devised their reunion and that she plans to set up a new government for the nation at Felbridge under Greg's name. However, Greg is curiously absent from the proceedings...

Charles, Jenny, Hubert and Alec finally arrive in Scotland and make for a hydro-electric power station to switch on the power. However they do not count on the intervention of a nationalistic Scotsman who sees their efforts as stealing Scottish electricity for England. Nor do they realise how far Sam will go to prevent the return of power to the nation...

Charles returns to the Walter's farm where he is reunited with a relieved Jenny and Agnes. Hubert discovers that the cows have brucellosis and tends to them whilst Jenny and Charles head up river to locate a vet called Bill Sheridan. They meet Bill and his partner Alice and the following day Charles and Bill head back to the farm. Before they return to Jenny and Alice they see a car travelling along a road. Charles jumps to the conclusion that Greg could have been the driver. Jenny is excited when she hears the news and sets off with Bill to locate him. Before they leave they all agree to rendezvous at Highley train station for what Charles hopes will be market day...

Charles, Jenny and Hubert arrive at a settlement based around a working mill. The community there has been influenced and led by former personnel headhunter Frank Garner (Edward Underdown) and Rutna, a young Indian woman. Their guiding principle is the belief that man died (during 'the death') and now needs to be re-born to a new way of life. Frank makes several failed attempts to speak to Charles alone and is clearly uneasy about something. When Charles, Jenny and Hubert's horses are poisoned with yew branches they have no choice but to stay another day...

Charles, Jenny, Hubert, Frank and Alec arrive at a settlement based at an old coal mine. The settlement's leader, Leonard Woollen, is anxious to get the mining equipment working again and enlists Alec and Charles's help. Another man, Sam Mead (Robert Gillespie) is opposed to the idea fearing a return to the age before 'the death'. Jenny is becoming increasingly emotional about the absent Greg. Charles pushes her too far in relation to Alec...

Charles, Frank, Jenny and Hubert are now searching for former electrical engineer Alec Campbell (William Dysart) with a view to using his skills to restore electrical power to the nation. However, they discover Alec to be withdrawn and unco-operative and still mourning his long dead wife. When he continues to refuse to help, Frank resolves to take stronger measures which involve some pethadine and Jenny...

A virulent flu bug is spreading through the country like wildfire. Abby Grant (Carolyn Seymour) and her husband David (Peter Bowles) are aware that the flu has reportedly claimed millions of people's lives in China, but they don't think that could happen in England. Abby becomes ill and takes to her bed. Meanwhile Jenny Richards (Lucy Fleming) learns from a doctor that this is no flu bug and that hundreds are now dying. Acting on his advice she flees London for the countryside. Abby wakes days later and fears that she may be the only one left alive...

Abby meets Arthur Wormley who has some strong ideas about how the survivors of 'the death' should organise themselves. Meanwhile Greg Preston (Ian McCulloch) meets a strong willed woman called Anne (Myra Frances) who needs his help to rescue a man who is trapped under a tractor in a nearby quarry. Elsewhere Jenny is still wandering the countryside alone...

Abby, Jenny and Greg have made an abandoned church their base. Abby hopes to find her son Peter. They make a trip to a nearby supermarket to gather some food supplies and encounter some of Wormley's men who insist they leave their loot. Jenny and Greg overpower them and they escape. The men are intent on revenge and begin to search the countryside for the trio...

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'...

Abby becomes separated from Jenny and Greg and rescues a man called Jimmy Garland (Richard Heffer) who is waging his own personal war against a man called Knox (Peter Jeffrey). Garland is heir to the Waterhouse estate that Knox has taken over and he wants it back so he can lead the community that has started there. Abby is captured by Knox and he tries to convince her that Garland has aggravated the situation and that he is willing to co-operate...

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...

When agricultural expert Paul Pitman (Christopher Tranchell) arrives at the grange, Greg feels threatened but the others welcome his expertise. When Greg remembers the supplies in the quarry (Genesis), Tom and Barney are sent to fetch them. Two more survivors arrive, former company director Arthur Russell (Michael Gover) and his secretary Charmian Wentworth (Eileen Helsby) who has stuck with him since 'the death'. Arthur's attitude infuriates Abby. When Tom and Barney fail to return, Greg and Paul set off after them in Arthur's landrover...

Petty arguments are dividing the ever growing community at the grange. Abby decides on a party on May Day as a remedy. The pary goes well and spirits are raised. However, the next morning they awake to discover that one of their number has been brutally murdered. The community meet to decide how to deal with the person they believe to be the murderer...

A pregnant young woman called Laura arrives at the grange, seeking shelter from her partner, a man called Huxley, who wants her back but doesn't want her unborn child. Abby and Greg argue as to whether she should be allowed to stay. When John and Lizzie unknowingly give away the fact that Laura is staying at the grange, Huxley embarks on a series of reprisals until the community agrees to give up Laura to him....

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...

When a flood destroys both their crops and stores, the survivors decide to trade the petrol in the tanker driven there by Donnie and Anne, as its the only thing of value they have left. Greg and Jenny set off in the tanker to trade with a nearby settlement. However they are followed by a man called Lawson and his two cronies, who want the petrol for themselves at any cost...

Abby is tiring of life at the grange and her thoughts turn to resuming her search for her son. After a row with Greg over the taking in of a sick girl, Ruth. Abby sets off for Waterhouse to find Jimmy Garland. Meanwhile Greg and Arthur make their first attempts towards federating the communities that have sprung up since 'the death'. When Ruth recovers, Greg and Jenny discover she is a former medical student and that she has some startling news for them...