The Great British Sewing Bee

The quarter-final sees the five remaining sewers make garments inspired by history's most influential fashion Icons.

For the Pattern Challenge, judges Patrick Grant and Esme Young draw on old-time Hollywood glamour with a dress reminiscent of Audrey Hepburn's little black dress in Breakfast at Tiffany's – a garment that demands a tight-fitting bodice and elegant cut.

The Transformation Challenge is inspired by the Sewing Bee's very own fashion icon, Esme Young, and her work with fashion label Swanky Modes, specifically their range of clothes made from shower curtains, shot by legendary fashion photographer Helmut Newton for Nova magazine.

Finally, in the Made-to-Measure Challenge, it's an all-male affair as the sewers have been asked to make smoking jackets. This tailoring test is combined with tricky-to-handle fabrics alongside the added pressure of creating a perfect fit for their model. Who will secure icon status and win Garment of the Week, and who will be a fashion fail?

Sara Pascoe welcomes the four semi-finalists into the sewing room as they get to work with utilitarian clothing, with a place in the final at stake.

Judges Patrick Grant and Esme Young challenge the sewers to make an office staple – the trench coat, which originated as part of a military uniform. They must tackle the multiple parts that make this coat so distinctive, from the storm flaps to the epaulettes to the double-breasted design.

The sewers really need to use their imaginations in the Transformation Challenge as it turns to housework and making a garment from old cleaning products, including cleaning cloths, rubber gloves and mopheads.

The Made-to-Measure Challenge is boiler suits. Once worn to stoke boilers, they are now a fixture on the catwalk and high street alike. Multiple pockets feature, but the sewers' biggest challenge is to make sure their boiler suits fit their models perfectly around the crotch and bottom.

Who will get promoted to the final, and who will be pipped to the post and take their leave of the competition?

It's the grand finale of The Great British Sewing Bee as the three finalists compete for the title of Britain's best amateur sewer, making the most glamourous and extravagant of garments.

Patrick Grant and Esme Young kick things off by challenging the sewers to make a Victoriana-style evening dress. These dresses require delicate fabrics to create the glamorous effect, but they are tricky to handle, especially when the pattern demands a fitted bodice, puff sleeves and frilled cuffs.

Next, it's the sewers' final chance to show off their instinct for design in the Transformation Challenge, as they attempt to turn female party wear into a glamorous men's red-carpet outfit, inspired by figures such as Billy Porter, Timothee Chalamet and Harry Styles.

Finally, they fit a Met Gala-worthy 'two-in-one' dress for their models, who this week are a friend or family member. Creating a dress which transforms from one dress into another whilst on the catwalk will take a feat of engineering and leap of imagination.

The past sewers return for a reunion, while the judges will make their decision then crown this year's best amateur sewer.