Writing their own cook book would be a dream come true for each of our final four? but how hard can it be? Tonight guest judge Curtis Stone sets an epic challenge for our contestants.

Guest chef Curtis Stone leads the service challenge at the Starlight Children's Foundation charity lunch. The contestants are split in two teams and must raise the most money for the charity.

In tonight's elimination, contestants must prepare a single dish plated into five identical serves, one for each of the four judges and one for the cook who will have the honour of dining with the judges. Closing out the episode with Marco Pierre White is the first MasterClass of the season. The contestants are joined by our judges at the picturesque Burnham Beeches.

In this mystery box challenge, the contestants learn that each ingredient costs $1 or less and are given 60 minutes to create a dish using at least one ingredient.

Guest chef Curtis Stone joins today's off-site team challenge. Each team must prepare a six-course degustation menu for 50 guests in only two and half hours to avoid the elimination challenge.

Masterclass. The losing team from the Food Truck Challenge now face elimination. Under the mentorship of Curtis Stone, they must cook a dish that symbolises what they're going to do once the competition is over.

Contestants have an hour to create a delicious dish from ingredients found in the Mystery Box set by international celebrity chef Curtis Stone.

Three contestants must create a dish worthy of a place in the semifinal. The final MasterClass of the season sees the tables turned on Gary, George and Shannon, who compete in a mystery box challenge. Later, Curtis Stone drops by to take part in an invention test relay.

The eight contestants who lost the previous challenge are cooking in this episode's elimination, with Curtis Stone to keep them company.

This is the final elimination before Finals Week, and will determine the top five for 2018. It's an elimination over three rounds. Plus, a MasterClass with Curtis Stone.

It's the end of the first week in the kitchen and the winners from the previous challenge will cook for an immunity pin. But it won't be easy: they'll be cooking against chef Curtis Stone.

Contestants are cooking at Press Club, the brainchild of judge George Calombaris. With the Press Club announcing it will soon close, the top five take to the kitchen to prepare one of the final meals.

Today's immunity challenge with Curtis Stone sees four contestants compete in a MasterChef time auction. The more time they spend on buying ingredients, the less time they have to cook.

For the final cook of Meet the Masters Week, the bottom four contestants must make a dish that demonstrates how they have mastered a skill, flavour or technique they have learnt across the week.

In today's challenge, the contestants must keep up with Curtis Stone as he cooks his ultimate roast chicken dish. Andy, Jock and chef Nornie Bero show off their skills in a delicious Masterclass.

Guest chef Curtis Stone leads teams out to the garden for a fast food versus fancy food service. With 80 ravenous diners waiting, the winners will head to the next immunity challenge.

Guest chef Curtis Stone returns as contestants cook a tasty dish worthy of immunity. But in this classic challenge, as their pantry of ingredients increases, their cooking time decreases.