Jack's world is thrown into chaos. The truth tears through the Carter family. Kat's grief leads her into trouble.

Colin Murray, Rachel Riley and Susie Dent host, with Ellie Simmonds in Dictionary Corner, as contestants race against the clock to pit their wits against words and numbers.

Coming up against the reigning champions are married couple Alice and Richard and Sophie and her niece Kristina.

Ellie Taylor dishes up some more unmissable gossip with a panel of Strictly celebs and the couple saved from the weekend's dance-off. Also, Motsi Mabuse drops in for a chat.

Noel Fielding and Alison Hammond lead the bakers through pastry week, where they make hand-held savoury pies in the signature challenge before attempting a Polish choux dessert in the technical. Finally, their skills are pushed to the limit when they are challenged to make an eye-catching decorative pie for the showstopper. Nigella Lawson and Paul Hollywood taste their efforts.

Nick and the team help a Kidderminster family caring for son Nathan, 11, who has up to 200 seizures a day, creating a safe home and space for the family again.

A devoted mother is shot in front of her young son after a confrontation with her ex-boyfriend. Investigators uncover a tragic case of domestic violence.

In Manhattan's Chinatown, Max Serio explores the secretive world of Chinese gangs, revealing how loyalty, belonging and fear fuel a dangerous criminal underworld.

David Jason and the cast explore archive tapes, featuring footage from Fatal Extraction, Mother Nature's Son, and never-seen-before outtakes.

Tempers are still frayed following the golden credit card when Rob Beckett splits the players into two groups, letting the fractured campers choose who they want by their side. After separate jungle treks, both groups are whisked by speedboat to a private island, where they are offered a spectacular party. But there's a catch - only one group can have it.

The tragic story of Peter Falconio, who was murdered while travelling with his girlfriend Joanne Lees through the vast emptiness of Australia's Northern Territory.

Jon Richardson and Judi Love host the companion programme, in which they are joined by a couple of guests to look back at the highlights of pastry week. They celebrate the standout moments and serve up their take on the episode's biggest talking points and best bakes.