Graham Turner

When an art dealer's wife is taken hostage at gunpoint, Luther leads a tense investigation. The hostage takers want payment in diamonds so, stalling for time, Luther substitutes a bag of replacement diamonds from the Serious Crime Unit's evidence safe. Luther and DCI Reed are on hand to arrest the gang members picking up the gems, but when everything starts to unravel Luther begins to suspect that even Reed has double-crossed him.

There’s something very odd about Mrs Gillyflower’s Sweetville mill, with its perfectly clean streets and beautiful people. There’s something even stranger about the bodies washing up in the river, all bright red and waxy. When the Doctor and Clara go missing, it’s up to Vastra, Jenny and Strax to rescue them before they too fall victim to the Crimson Horror!

Holloway and Goldie investigate an extortion racket in Chinatown. Sykes and Hawker compete against each other in an 18ft skiff race.

Peggy celebrates her last day at Skelthwaite, and Dick and Cheryl prepare to meet their new son for the first time.