Twelve new sewers enter the sewing room and begin with a top with a twist, then they express themselves through office wear transformations, and finally produce cut-out dresses in the Made to Measure.
The sewers face travel related challenges. They are asked to make a rucksack in the pattern challenge, transform windbreaks into a waterproof garment, and make swimwear in the made to measure.
The 10 sewers celebrate clothes from west Africa. The Pattern Challenge takes inspiration from a Ghanaian batakari or fugu tunic. The Transformation Challenge turns adire fabric into dresses. They make Made-to-Measure boubous robes.
The 7 remaining sewers follow the pattern for a child's dragon dressing gowns, they personalise denim jackets using hand-me-downs and create pint-sized made-to-measure party outfits for Kids' Week.
A quarter-final place is at stake as the sewers go on a trip down memory lane to the 90s. Cargo pants feature in the Pattern Challenge, household textiles are transformed into fancy dress outfits and a supermodel dress is made to measure.
It's Week 8 and the five remaining sewers celebrate fashion icons by making little black dresses for the Pattern Challenge, transform a shower curtain and in the Made-to-Measure Challenge make smoking jackets.
It's the semi-final, and the four remaining sewers are faced with three utilitarian challenges that stand between them and a place in the final: making a trench coat, turning cleaning products into a garment and making boiler suits.
It's the final of The Great British Sewing Bee, and after challenges including a Victoriana-style evening dress, fabulous men's outfits and a two-in-one dress for a friend or family member, only one sewer will be crowned winner.