District Nurse Megan gets a call to a small South Wales town in the mid 1920's, to investigate a virulent epidemic.

Megan is convinced that an epidemic is caused by something nasty in the water supply, and is determined to find out what.

Megan helps a local farmer's cow give birth. She slowly gets accepted into the village.

discovers that the local children have contracted horrible head lice.

Megan gets attacked in the street by the parents of nit-infested kids, and tends a local who is sick with pneumonia

Megan has to deal with a complicated pregnancy in a remote cottage...all alone.

Megan is convinced two of her patients are lying about their injuries, and Megan has a strange and worrying conversation with young Nora.

Megan finds that proving why young Nora mysteriously died is near impossible.

Megan travels up to North Wales to visit lovely Mrs. Pughe-Morgan.

Megan moves into Gwen and David's cottage, causing nasty tongues to start wagging. Megan decides to join the local brass band.

Gwen gets threatened with eviction unless District Nurse Megan moves out of the cottage. The school outing to the seaside ends in a disastrous encounter with some sheep.

Megan has her hands full dealing with the aftermath of the School kids bus crash.