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Discover the very latest must-haves for your home and garden with Must Have Ideas.

The hunters search for relatives of a south London lady, but there's a surprise twist. And on another intriguing case, the team uncover the story of a man who led a double life.

Alan Johnson and his sidekick Dave Owen host at Dunsandles Guest House in New Brighton on Merseyside. Things get off to a hairy start with some scandalous sheets.

Nick and Gina Mead welcome their rivals to the Lady Teal Hotel Boat on the waterways near Burnley, where the afternoon entertainment is a freezing competition out on the locks.

Brock hopes that his sense of humour and perfectionist nature will impress his guests at York House in Tetbury, Gloucestershire. But his reluctance to go off-menu at breakfast disappoints.

Hospitality veterans Leo and Sonya Brooke-Little host at Heyford House in Oxfordshire. One guest settles some scores during an afternoon of boxing.

The B&Bers meet for one last time to settle some scores and find out how much they've been paid. After accusations of over-enthusiastic hosting, the winner is announced.

Will medical editor and rapper Adam's abundant vegetables impress his guests as he serves a simple yet wholesome vegetarian menu.

Copywriter Will is confident that his veggie menu will trump Adam's from the night before. But there are some fishy goings-on and Will's risotto is upstaged..

Retired advertising sales director Gill hosts with a Middle Eastern menu and a fun dress code, on a night featuring unexpected revelations and some very honest feedback.

Teacher and surfer Jo treats her guests to a tropical-themed evening featuring some hit-and-miss food, a dessert drama and a cheeky massage thrown in for good measure.

Social worker Ruth serves up a Jewish-Irish fusion menu on a night featuring kitchen chaos, some unexpected veggies and a knicker-nicking, limelight-stealing cat.

At Gracelands Glamping in Ballyronan, couple Shaun and Hollie host with their newly built pods. But plumbing issues dampen the mood, and the barbecue breakfast gets a grilling.

At Manse on the Beach in Cloughey, former international rugby player Brian Robinson hosts. The guests love the sea views, but two of them feel hot under the collar after a bad slumber.

At The Secret Garden Glamping in Skelmersdale, Lancashire, friends Derry and Mike host. The B&Bers are ecstatic with their rooms, but two guests feel a little hemmed in by their hideaway.

The final visit is to the adults-only Hawthorn Hideaway in Walkeringham, run by Ronnie and Jo. Derry and Mike are delighted by the décor, while Shaun and Hollie get a stunning surprise.

On the final day, the B&Bers meet to discuss their feedback - from disappointing breakfasts, to pulling off the covers on some dodgy sleep scores - before the winner is announced.

Steve and Celine's 1960s Warwickshire house is a neglected embarrassment. Innovative architect Graeme Williamson brings his A-game to help fix this tatty A-frame.

In Belfast, Jennifer's hit a wall trying to balance her budget and wish list. In County Down, can Tony and Val end their Goldilocks search and find somewhere that's just right.

Andy and Nicki Bruce try to build an experimental flood-proof, floating house on an island in the River Thames. But building such a complex design on a site with limited access isn't easy.

Alice visits Tutankhamun's mummified body in the Valley of the Kings, and meets a friend who's unearthing hundreds of previously unknown burial sites.

Was Genghis Khan killed by an arrow? Or lightning? Maybe the plague? Suzannah Lipscomb investigates. Digital forensics indicate a death even stranger than legend.