Alan Bates and the Subpostmasters begin their fight for the truth and justice..

Officials come to Alan Bates’ post office to shut the branch down a day earlier than expected, but Alan refuses to be pushed around.

A suspicious death interrupts the Grantchester Easter celebrations.

Nancy’s wedding plans take a surprising turn. Sister Catherine takes her First Vows.

Joyce faces a disciplinary hearing over a recent complaint which has been upheld.

It's September 1970 and the local dustbin strike leads to a refuse site established outside Nonnatus House. With Rosalind unwell, Joyce takes over her rounds, including a visit to a rude patient who resents being examined by her.

Fortune’s wheel turns as Cromwell finally finds himself in Henry’s crosshairs.

The Nonnatus team oversee the care of a man living inside an iron lung.

Cromwell brings Anne of Cleves to England to be Henry’s new wife.

The sisters welcome a new postulant, Sister Catherine, to Nonnatus House.