Season: 15 | Episode: 14 | Length: 60m

The semi-finals conclude with the second group of four chefs facing two tough challenges as they try to win a place in Finals Week and move one step closer to lifting the trophy. Once again, a pop-up restaurant opens its doors in a warehouse micro-brewery in industrial east London, setting the scene for an intriguing opening challenge. Then, the contenders have 75 minutes to cook a Desert Island Dish - something they would take with them if they were stranded on a desert island.