It begins with just a few people falling ill. Another flu virus that spreads around the globe. And then the reports begin that people are dying... When most of the world's population is wiped out, a handful of survivors are left to pick up the pieces. Cities become graveyards. Technology becomes largely obsolete. Mankind must start again... 4.1 The Old Ways by Ken Bentley The Government has plans for a national state of emergency. But when Evelyn Piper and her colleagues shelter in the Tartarus bunker, they discover no amount of planning can prepare for the reality of the Death... 4.2 For the Good of the Cause by Louise Jameson One old friend calls on Greg and Jenny to look after another. Together, they visit a utopian community where the inspirational Theo seems to have founded the perfect way of life... 4.3 Collision by Christopher Hatherall When the old world collides with the new, casualties are unavoidable. While Greg and Theo work together for the future, Jenny tries to save lives - with the help of a troubled young man called Michael... 4.4 Forgive and Forget by Matt Fitton As long-buried crimes surface, resentment and recrimination threaten to destroy the peace of the Foundation. Jenny, Jackie and Molly have their own trials to bear, and Greg confronts the truth of this new world head on. For some, nothing will ever be the same...