Joe Lycett hosts as the nine remaining sewers go global, taking on garments and techniques from around the world. First, they must follow a pattern as judges Patrick Grant and Esme Young ask them to make a French Breton top. Horizontal stripes must be perfectly matched, the wide-set boat neck must lie completely flat, and the fiddly button placket must be expertly constructed.Next up, it's the Transformation Challenge, with the sewers taking on sarongs. These colourful cloths must be transformed into a brand new outfit in just 90 minutes, making imaginative use of the distinctive, bold print.For their final challenge, the Made to Measure, the sewers make outfits inspired by the life and art of the iconic Mexican artist Frida Kahlo. Known as much for her personal style as her vivid artwork, the sewers must use Kahlo as their inspiration while creating a modern garment that fits their model perfectly. Who will ace this creative brief and win Garment of the Week, and who will have to leave the sewing room?

It's children's week in the sewing room and judges Patrick Grant and Esme Young's pattern challenge choice is a classic for any toddler's wardrobe - a romper suit. The transformation task sees the sewers turning an adult wetsuit into a kids' fancy dress costume, before they tackle a children's raincoat, remembering it must be fully waterproof but allow enough movement for jumping in muddy puddles.

The fashion industry is the biggest polluter of our planet next to oil, so The Great British Sewing Bee returns to Reduce, Reuse and Recycle Week, with all the usual fabric in the haberdashery being replaced with charity shop clothes and soft-furnishings. Host Joe Lycett kicks the six remaining home sewers off with a pattern for a gentleman's waistcoat using just second-hand clothes.In the Transformation Challenge, the sewers are tasked with changing items of army surplus into a stylish and wearable garment for a woman.Finally, the sewers are asked to use old jeans to create a Made to Measure dress. Jeans are one of the most polluting garments to manufacture, so to breathe a new lease of life into them, the sewers must create a new denim dress that fits their model perfectly. At the end someone will win Garment of the Week and the sixth sewer is asked to leave the Sewing Bee.