Series 3 · Episode 3
A Worthy Cause
First broadcast 21 June 2009 · 4.76 million viewers
DirectorMetin HüseyinWriterJeff PoveyOriginal order15 of 18Editorial statusOwner reviewed
Fan-reviewedAll 18 episodes watched · editorial review updated 5 September 2026How this guide is researched
The case and opening problem
Lyle helps Nigel Pearson defend a convent community facing eviction while Peter mediates between a medical researcher and her daughter.
Themes
Credited guest cast checked so far
Episode-specific guest credits are awaiting an end-credit check.
Reveal the complete plot summary — spoilers
Plot summary
Short of money for Petra’s school fees, Beatrice starts a telephone sex line and receives a deeply unwelcome call from Petra’s father. Lyle helps Nigel Pearson defend a community of nuns facing eviction from their convent. Peter attempts to reconcile a medical researcher and her daughter, whose personal conflict has become entangled with their work.
What this episode changes
Beatrice’s attempt to fund Petra’s schooling brings Petra’s father back into the story.
Why this episode matters
Money for Petra, the convent’s home and a research partnership all turn apparently practical arrangements into questions of loyalty and vocation.
Scene log status
The story and credited names above are reviewed. Exact timestamps, music cues and scene-by-scene filming locations remain to be checked directly against a legitimate copy of the episode.