It's the second week of heats, and seven more hopefuls need to pull out all the stops to impress judges John Torode and Gregg Wallace. This year sees the return of the MasterChef Market, stocked full of the best-quality produce from across the world. The challenge is to invent and then cook one dish using anything from the market. The featured ingredients include venison, chicken, parma ham, sea bream and pollock, and the contestants have an hour and ten minutes to dazzle the judges.