He introduces himself as Alistair McFadden. He is knowledgeable about herbal medicine. After his period of isolation he comes to the farmhouse to meet the Whitecross community.
He witnesses a spat between Ruth and Jenny. Jenny is fed up of making soap and thinks that Ruth's trip to London has made her obsessive about hygiene.
Greg soon discovers that Jenny is really upset about his trip to London and explains that she couldn't cope if he ever left her again. Jenny asks Greg to promise her that he will never leave again. He tells her he cannot promise her that and suggests that she needs a break from the baby and the children. She is not so sure. Hubert is unhappy because his house roof is leaking, but no-one will let him live with them because he smells.
Matters worsen when Alistair is given a room in the White House where Arthur lives. Hubert sees this as preferential treatment and takes a dislike to the newcomer. Hubert soon discovers from a mislaid newspaper cutting that before the death Alistair had murdered a child. Hubert intends to use this to make sure of Alistair's exclusion from the community.
Charles learns from Hubert that Alistair is hiding something and demands an explanation.
McFadden explains to a select gathering that the event happened in his old life when he had been unable to control his anger when a child had been frightened of him. He believes that his seclusion since the death has helped him to heal himself and now he wants to be with people again.
Ruth is supportive of his plight and the others agree that he can stay. Hubert is not prepared to accept this and spreads rumours about Alistair.
He even advises John to be wary of him, likening him to a tiger.
Later when John is playing he runs away from Alistair when he jumps out at him as a joke.
Alistair is confused and then angered by the incident. Lizzie can't find John after calling out to him for some time.
Lizzie alerts the adults to John's disappearance. Arthur announces Alistair's departure shortly afterwards and the wrong conclusions are drawn.
Alistair is brought back to Whitecross and he tells them about the incident with John. The boy is still missing as night falls. Alistair is guarded as the others decide what should be done. Ruth thinks he should be let go.
Greg is reluctant to hold a murder trial and decides to secretly release him from house arrest before morning.
John is found in the quarantine hut having gone there after he had run away from the settlement. Alistair decides to leave anyway. Charles is initially angry that Greg did not consult him about his decision, but more upset that the community did not do right by Alistair.
This episode follows a standard pattern which is repeated throughout the second series. Namely the arrival of potential community members, who have something about them that sets them apart from the crowd, in this instance a terrible secret in his past. Another recurring feature is that these new arrivals often have skills that are unique and therefore useful to the community. Alistair is a herbalist, therefore complementing Ruth's medical skills. Although this scenario is unlikely it does give...