Overview: Clara Amfo hosts the quarter-final as the remaining four get closer to the life-changing contract with a major retailer. However, two more challenges stand in their way. Miguel wants to see who has the nose for business and sends in his toughest negotiator, retail expert Nayna McIntosh, to grill the brand owners on the future of their brands. Each must prepare a five-year business plan. Miguel also wants to judge who has what it takes to ‘go global’, with a challenge that sees them design an upcycled vintage outfit for an international market in front of Pussycat Doll and eco-clothes warrior Kimberly Wyatt. Tensions run high, as no-one wants to close the shutters on their studio at this stage.