When a man is found dead on the streets of Cambridge, Alphy and Geordie begin to unravel clues that leads them to a shocking revelation.

Geordie and Will realise that they may have sent the wrong man to prison for murder.

When a successful music producer is murdered, Geordie finds himself implicated in the investigation, and forced to consider whether his army buddy Johnny could be the killer.

With Sam missing, Sidney and Geordie are forced to investigate a crime together.

Will Gary go to the gallows? Will Geordie go to prison? Are Sidney and Geordie's crime fighting days over? The case of a suspicious death takes a surprising turn.

Will and Geordie investigate an audacious bank robbery, which sees Geordie unexpectedly cross paths with an old friend from his army days.

An abandoned baby is discovered on the same day that a hotel manager is found dead. Things are complicated further when Geordie is blindsided by Will's news.

When a young woman's death is covered up, Sidney and Geordie try to hold those responsible accountable for their actions.

Will, reeling from his family tragedy and daunted by the choice he now faces, seeks distraction in Geordie's world. A curious new case unfolds: the murder of a Teddy Boy at a dance hall, which Geordie concludes is proof that the country's truly gone to the dogs.

Sidney and Geordie struggle to determine the connection between a murder and a number of post office robberies.

Sidney and Geordie investigate a Cambridge lecturer's fatal fall from the college spires.

Sidney is summoned to perform an exorcism at a stable owner's home.

When a woman is found dead, laid out in the shape of a crucifix on Jesus Green, Will and Geordie discover the ring on her finger proves she was married to God.

A vagrant is found dead in the doorway of Leonard's cafe.

When a little boy is abducted, personal pressures on Sidney and Geordie come to a head.

Alphy discovers that a woman he knows has gone missing. When her friend is murdered, Alphy and Geordie race to find the answers.

When the leader of a student group falls to her death during a protest, Will and Geordie are drawn into campus politics. The Bishop introduces a new face at the vicarage.

A member of Will's congregation is found murdered just before a church fundraising event.

Leonard goes to Will and Geordie to ask for their help when someone he knows is suddenly accused of murder.

When Sidney Chambers begins receiving sinister anonymous phone calls, he realises he is connected to a series of murders targeting respected figures in the community. Leonard bonds with Hilary as she cares for her dying father, while Geordie's investigation of the killings leads him to a mysterious home for people with disabilities.

Will has disappeared, but with Bonnie about to give birth, Geordie must find him and bring him to his senses before it is too late.

Sidney arrives at a Romany camp, but when someone is killed, he is prime suspect.

After CeCe's siege, Geordie fights for his life while fugitive Dex Sutton flees. Alphy and Larry track him through Cambridgeshire as Alphy's faith crisis peaks.

A Cambridge quiz team member's death turns deadly when Alphy's Bible appears at the scene. While Geordie rushes to judgment, Alphy reveals a hidden world of bullying, secrets, and shame.

Still reeling from his mother's departure, Alphy drowns his sorrows until a case at crumbling Larson Manor forces him back to work—and into a mystery.

Alphy's trip to reconcile with his mother takes a shocking turn when he meets someone and uncovers painful family truths. On the train home, a passenger is murdered and Alphy becomes the prime suspect amid prejudice and fear.

A man found dead near Bishop Grey's home leads Alphy and Geordie to uncover Church corruption. Alphy's faith wavers confronting hypocrisy while Geordie gets promoted but grows distant from Cathy. Meanwhile, Leonard returns to his calling

Cathy's triumph at CeCe's turns dark when a club manager is found dead and Alphy is discovered drunk at an illegal poker game. Geordie uncovers extortion as friendships fracture and faith falters.

Alphy feels like he has found home, until he is forced to confront secrets he has kept close to his chest.

Alphy and Geordie investigate witchcraft at a home for orphaned and disadvantaged children, where Alphy struggles to consider an old friend as a suspect when a body is found.

A death at the university plunges Geordie and Alphy into a world of academic adversaries, and Alphy encounters a romantic complication.

Geordie is placed on desk duty as Elliot contrives to force him to resign. The next murder case is handed to Larry, who struggles but wisely enlists the help of Miss Scott.

At one of Cambridge's most prestigious colleges, a man is murdered and a valuable painting is stolen, leaving Geordie to determine if the two crimes are linked.

Leonard is devastated when a halfway house resident is found dead. The man confessed suicidal thoughts to Will, but is this suicide or murder?

A much-needed summer break at a vacation resort takes an unexpected turn for Will and Geordie when the camp owner is found dead in suspicious circumstances.

Alphy's attempt to cook a romantic dinner is interrupted by a familiar face arriving unannounced at the vicarage.

When a student from a prestigious all-female college is found dead, Will and Geordie must infiltrate the murky world of campus politics and university societies.

Leonard's drinking leads to a prison cell, and the consequences escalate from there.

After a bumpy start to their relationship, Will and journalist Ellie go on their first date with a trip to the ‘flicks'. But a scream from the projection booth cuts the romance short as they discover a brutal murder has taken place within the cinema.

Geordie is called to investigate an apparent break-in at a computer laboratory. When the head of the lab keels over and dies from mercury poisoning, Geordie suspects foul play.

Will and Leonard witness a deadly and deliberate hit-and-run in Grantchester. Geordie traces the car to a pair of decidedly dysfunctional brothers whose house lies far off the beaten path. The victim's wife, his employee and the two brothers are all damaged characters caught in a web of lies and betrayals, and it's not just secrets that are hiding within the brothers' grounds.

Geordie and new vicar Alphy Kottaram get off on the wrong foot but soon find themselves teaming up to investigate the murder of a local landowner.

Sidney gives up alcohol and tries to renew his focus on clerical duties, but is dragged into another case when there are mysterious deaths in the village.

A streaker is found dead, sparking an unusual case for Will and Geordie that draws them into the world of experimental psychotherapy and hallucinogens.