West Yorkshire district nurse Peggy Snow decides to help a patient in severe pain and ends up being accused of murder. Meanwhile, her brother Simon and sister-in-law Ruth are about to welcome their baby.

Peggy sets about investigating a small boy's behavioural problems.

A seemingly-trivial incident at a nursing home turns into a nightmare for Ruth.

The Skelthwaite Scorpians have a new recruit who makes an impact. Ruth travels to Scarborough for a conference, where she bumps into an old flame while Stephan goes to London in search of Wendy.

Walter's flat catches fire. Simon and Ruth quarrel over Ruth's job and Stephan's agreement with Peggy is long overdue.

The Scorpians prepare for a match against formidable opponents. A pig farmer's wife reveals a secret to Ruth, and Peggy and Stephan await a letter that could mean he leaves Skelthwaite.