Tina Pepler's gripping story about an international aid worker posted to South Sudan. Martha has arrived in Agok, to find the situation worse than she had been briefed to expect. Show more

The situation in Agok is getting worse, with hundreds of refugees arriving across the border from the north, and tensions both on the outside and within the team itself are rising. Show more

Martha wonders if she is up to the demands of her post. Mistakes and misjudgements are all too easy to make, and the tensions within the team are adding to her feeling of isolation. Show more

The humanitarian crisis facing Martha and her team is escalating. The clinic is overwhelmed, and militias are attacking the wells. Show more

As her team tries to cope with an ever-increasing number of refugees fleeing across the border from the north, Martha has a crisis of her own to deal with inside the compound. Show more

Someone is watching Frankie, but who - and why? At work, Frankie finds herself caught between her patient and his wife. A dying patient puts things into perspective for Paula.