It’s the long hot summer of  1959 and wedding season is in full swing in Granchester village. As the Reverend Davenport (Tom Brittney) unites happy couples in holy matrimony, Detective Inspector Geordie Keating (Robson Green) finds himself trying to repair his own marriage to his estranged wife (Kacey Ainsworth) Former curate Leonard Finch 9Al Weaver) embarks on a new venture, while housekeeper Mrs. Chapman (Tessa Peake-Jones) receives news that tests her faith and usual sense of certainty, Will faces some difficult decisions about the man he wants to be and what he wants from his life. When one of Geordie’s investigations brings danger to the vicarage door, will it change life in Grantchester forever?