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Aspiring chefs draw their weapons for a culinary showdown judged by world-renowned experts. At the end of a series of challenges, there remains a survivor who is crowned the best in Australia.
It's the first pressure test of the series - and it's a big one. Guest judge Kirsten Tibballs has created a dessert so special that it will require a Midas touch to master it.
Legendary Australian chef Shannon Bennett inspires the contestants with his quick-fire cooking skills, and they must create their own immunity-winning dish in just 20 minutes.
The cooks take part in MasterChef's infamous one-inch cube taste test - but there's a twist! This time, they're in teams, with one person's palate responsible for everyone's fate.
Today's Mystery Box challenge sees the chefs enter the kitchen to find the judges' four fridges. They must select one and use the ingredients inside to create a dish in 75 minutes.
Four chefs compete for immunity, and have one hour to recreate Curtis Stone's dish of pork loin, citrus beurre monte, braised fennel, pistachio dukkah and carrot puree - without a recipe!
A group of 24 returning contestants arrive at the MasterChef kitchen for another shot at the trophy, starting with a team service challenge - and a huge prize up for grabs.
The cooks must work at record pace all through a Keeping Up with Gordon challenge to deliver two of his dishes as they compete for the only immunity pin of the season.
To win immunity and a chance to see their dish added to the menu at Gordon's new London restaurant, the chefs must create an elevated version of their favourite late-night snack.
After watching an emotional video documenting their MasterChef journeys, the chefs must bring a dish that best represents who they are now as they come back to win.
MasterChef royalty Peter Gilmore presents a Mystery Box packed with ingredients from some of his most iconic dishes, from the world-famous Snow Egg to the decadent Chocolate Ethereal.
Four teams have two hours to cook a main and dessert in a service challenge led by Jean-Christophe. One dish must be a French classic, and the other a French classic with a twist. S17 Ep11
The cooks have 75 minutes and access to an open pantry to present a dish with an element of tableside theatre that wows the judges and keeps them safe from elimination. S17 Ep12