It's the final week of MasterChef 2015. Over the past six weeks, the country's most promising amateur cooks have been whittled down to the best five. All of them have just one goal: to lift the coveted MasterChef Champion trophy. Tonight, the final five become the final four. The final five travel to Cambridge University's Churchill College, where they have the immense task of cooking a five-course dinner in honour of the man regarded as one of the greatest wartime leaders of the 20th century - Sir Winston Churchill. It is 50 years since he passed away, and historians, biographers and members of his family are gathering to remember him. The dinner will be overseen by legendary chef Michael Caines, one of only a handful of British chefs to have held two Michelin stars for over 15 years. Michael has devised a five-course menu for the dinner and the amateurs will be challenged like never before to replicate his exquisite food for this important occasion. The guests all have a strong connection to Winston Churchill. They include Celia Sandys, one of Churchill's ten grandchildren, Churchill's great-grandson Randolph Churchill, renowned Churchill academics Cita Stelzer and David Reynolds, and the evening's host, head of the Churchill Archives Allen Packwood. Can the MasterChef final five blow these guests away with some amazing food worthy of the great man himself? But it doesn't stop there. Back at the MasterChef kitchen, the finalists are challenged to cook a dish inspired by a hero of theirs. It's high drama as the amateurs push themselves to the limit to impress judges John Torode and Gregg Wallace. Who can impress enough to make it through to the final four and keep alive their dream of winning MasterChef 2015?