1. The New Inventors: July 27, 2011
2. Design and technologies

Today's mystery box is all about smoke. Contestants can use any method of smoking as long as one element has been smoked with a smoking gun. The top four will cook in tomorrow's immunity challenge.

Engineering has built our modern world. Everything from skyscrapers to roads and air travel are here because of Engineering. But what happens when engineering goes horribly wrong? Go behind the headlines to uncover what really happened in the most notorious engineering accidents.

Benjamin Cooper, executive chef of Chin Chin Melbourne, sets tonight's pressure test where contestants must recreate his jungle curry with rice and roti without a recipe.

Anja explores how nature can be rebalanced with human intervention, and why intervention is needed in the first place.

Teams of two must create two dishes using a chosen ingredient. Dishes must be identical in taste and appearance, but they will not be able to see each other while they cook, so communication is key.

It's an Australia-themed pressure test. First up contestants must cook a delicious savoury pie and sauce. The bottom four must then create a dish celebrating what Australia means to them.

Once again, Kevin McCloud embarks on a nationwide journey to explore some of the most spectacular homes in the running for the 2019 Royal Institute of British Architects House of the Year.

This episode of Fashionista features knitwear extraordinaire, Bowie Wong. Hosted by SBS TV's iconic fashion guru, Lee Lin Chin.

Each round in this immunity challenge is worth 10 points and the contestant with the highest score at the end of round three will win immunity and be free from the upcoming elimination.

This episode's mystery box ingredients are decided entirely by the luck of the draw, with numbered lottery balls corresponding to 25 ingredients on display.

Engineering has built our modern world. Everything from skyscrapers to roads and air travel are here because of Engineering. But what happens when engineering goes horribly wrong? Go behind the headlines to uncover what really happened in the most notorious engineering accidents.

Contestants discover they must create a dish inspired by chef Coskun Uysal's chicken rice pudding dessert. With this in mind, they must create their own dessert featuring a meat or protein.

Contestants cook a sweet or savoury style dish championing a citrus fruit of their choice. In round two, they use the same fruit, but their dish must be in the opposite style.

Lara explores ocean energy and what it means for Ireland's future. Lara investigates the latest in ocean energy technology and the innovators behind it. Lara discovers the vast wealth of energy sitting just off our shores.

Contestants must make a dish that has two different flavoured ice-creams that only work when they are eaten together. In round two, they must make a dish using one of five unusual flavour pairings.

Lee Lin sees fashion as an art form through which one can express oneself as clearly as any other medium. She talks to contemporary fashion industry specialists, such as designers, high-fashion importers and even dry cleaners, and has them explain their work and their influences. This episode is about Jason Chetcuti and his work on denim as a wearable canvas. He talks about his influences from rock culture to big stars, and his technique. With the participation of Aunty Dee Dee.

Contestants must create a dish inspired by one of seven classic fairytales. With an open pantry and garden, the contestant with the best dish and the strongest concept will win immunity.

The contestants lift the lids of their mystery box to find a photo sent by their loved ones. The contestants have 60 minutes to create a dish inspired by the memory in their family photo.