James Norton and Robson Green return as the local vicar and detective inspector in the Cambridgeshire village of Grantchester for the final time in this third season.
Sidney has lost his faith in a church that will not allow him to be married to the woman he loves, so the Archdeacon tells him he must go away and write a resignation letter. Sidney visits Amanda (Morven Christie), telling her about his plan. Their moment of joy is cut short when she asks if he has told Mrs Maguire (Tessa Peake-Jones) or Leonard (Al Weaver).
To Sidney’s relief, Leonard seems happy for them, but Mrs Maguire cannot contain her upset. On his way out of the vicarage the next morning, Sidney spots Mrs Maguire crying, and then encounters Leonard, who is now wondering about his own future, should a less tolerant vicar move in.
Sidney thinks his days in the village are numbered, but when a little boy named Jacob is abducted Sidney finds that the community need him more than ever. Geordie’s behaviour grows increasingly erratic as he struggles to cope with the mess he has made of his family life, and as Sidney and Geordie move closer to discovering who has kidnapped Jacob, Sidney must choose to move forward with Amanda in London, or be there for his best friend Geordie in his hour of need.
Grantchester Season 3 Episode 6 airs on Sunday 28 May 2017 from 9.00pm-10.00pk on ITV.