In the second heat, a team from the British Armed Forces meet the only all-women team in the competition and a team from a world-famous London hotel. To secure a place in the semi-finals, the teams must impress the formidable judging panel of Benoit Blin, Claire Clark MBE and Cherish Finden. In the Miniatures Challenge, the teams are asked to produce 36 opera slices, 36 babka knots and 36 petits gateaux in the shape of a sphere, invented by the teams themselves. They have just three hours to make all 108 pastries. In the Showpiece Challenge, the team are asked to reinvent a popular British dessert as a fine-dining experience and present it as a dazzling showpiece display. The humble dessert getting the five-star makeover this week is trifle. The results are simply jaw-dropping but which team will please the judges?

Three more teams compete. In the Miniatures Challenge, the teams must produce 36 St Marc slices, 36 sfogliatelle and 36 small domed cakes invented specially by the teams. Identical batches of perfect bakes are what the judges are looking for so this is all about precision cooking in high volume with immaculate results. With just three hours to make 108 pastries, which captain will take their team to the top of the leader board? In the Showpiece Challenge, the team are asked to reinvent a popular British dessert as a fine-dining experience and present it as a dazzling showpiece display. This week, sticky toffee pudding gets the five-star treatment. The teams' extraordinary designs include a model of the Lake District and a brandy snap tower which glows in the dark. Ambitious and risky, but will the judges be impressed? And who will be back to bake again in the semi-finals?