Back in London, Susan Ryeland is once again corralled into the world of detective Atticus Pünd as he investigates the death of Lady Margaret Chalfont in the Greek Isle of Corfu.

When the mayor of Marlow suddenly dies during a town council meeting, Judith, Becks and Suzie investigate every single suspect trapped in the room.

As Geordie fights for his life, Alphy’s crisis of faith reaches a peak in his hunt for justice.

As Alphy seeks redemption, a murder investigation spirals into a high-stakes siege.

Cathy’s triumph at CeCe’s turns dark when a club manager is found dead.

Church corruption shakes Alphy’s faith while Geordie’s promotion strains his marriage.

Alphy’s trip to reconcile with his mother takes a shocking turn when someone is murdered and he becomes the prime suspect. Back in Grantchester, Leonard defends troubled Raymond from Geordie, and Miss Scott hides a big secret.

Alphy sinks into a mysterious case while Geordie’s promotion threatens their partnership.

Rivalry turns deadly when a Cambridge student is murdered, and Alphy’s Bible turns up at the scene. As Mira’s presence sparks a crisis of identity for Alphy, Geordie faces a pivotal decision that could divide them forever.

Alphy’s drive-in fundraiser turns deadly when a sponsor is found murdered, and multiple suspects confess. As Alphy faces painful truths about his mother and faith, Geordie grows jaded, Cathy clashes with Mrs. C, and Leonard searches for purpose.