BBC Three

'God save the Queen' has been scrawled on the surface of Mars. What are Victorians doing on the home of the Ice Warriors? What will they find beneath the Martian soil?

A hunt for the lost Ninth Roman Legion leads the Doctor, Bill and Nardole into the middle of an ancient battle that could cast humanity into the dark forever. What is inside the cairn? How far will they have to go to defeat the terrifying alien Eaters of Light?

Rachel tries to 'fix' a painting of the family she commissioned after the artist made her look older, while Cherry launches her salsa class and Sue buys a pool.

The Jessops travel to Cardigan to confront Ray, Paul's old archery teammate and Rachel's ex-boyfriend, about cheating Paul out of a place in the 2008 Olympic team.

With Dermot and Maria's wedding just weeks away, the Brown household is in crisis. Agnes Brown's son Dermot wants to ask his childhood friend Buster to be the best man, but Agnes has set her heart on Mark Brown, her eldest son, being Dermot's best man. On top of this, Mrs...

Agnes Brown and her friend Winnie gatecrash Dermot's fiancée Maria's hen party but realise that they have the wrong venue. Later, having invited Maria's snooty mother Mrs Nicholson to dinner, a nervous Agnes shores up her confidence with alcohol, but chaos ensues as the evening...

Sam and Jay try to replace their broken water heater, but Isaac turns the upgrade into a campaign issue in his bid to represent the basement ghosts; Kyle attempts to make Bela jealous by pretending he's dating Hetty.

Trevor lands himself in trouble when an inappropriate gift to a co-worker forces him into an HR meeting only Jay can handle; Pete unintentionally sparks drama with Alberta after casually mentioning a surprise visit to his ex.