In a test of their engineering skills, the six teams have to build a structure that can withstand increasing shake factors. The team that survives the highest shake factor will win immunity. Classroom activities: Explain why the winning towers were so strong? Which design could be used in the real world? Do some research on buildings in countries where earthquakes occur. How do they make their buildings withstand shaking? Design your own earthquake proof tower. Test your design with Lego or other materials.
In this episode's elimination challenge, every contestant bar one, the winner of the immunity challenge, is up for elimination. The contestant with the least impressive dish will be going home.
A double-header challenge sees the remaining teams build a tower as tall as they can in two hours. Then, in one of the hardest builds so far, they must create magic from one hanging brick - a careful measure of weight and balance.
Come inside Lego's secretive headquarters, to meet some of the super brand's brightest stars and discover more of its company DNA than has ever been on show before.
Germany's Wolfsburg car factory is the largest in the world. This episode uncovers the engineering and production innovations hidden inside it.
The five contestants with the most impressive dishes from yesterday's challenge find themselves back in the kitchen ready to cook off in an immunity challenge. Plus, MasterClass with Andy and Jock.
In the first mystery box challenge of the season, the 22 remaining contestants discover the ingredients have been chosen from all corners of the globe by judge Melissa Leong.
In the first pressure test of the season, contestants must cook three dishes from judge Jock Zonfrillo's three-hatted, award-winning restaurant, Orana. The least impressive dish will send someone home.
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.
In the first elimination, teams must create a classic fairy tale scene. They will have 12 hours to complete a fairy story that is recognisable and impressive. For one duo, the chance to be this season's Lego Masters slips away.
The teams have 10 hours to make a showstopping Hero Shot, one that looks like the ultimate moment in a movie. They must pick a story that will explode using their four elements: chalk, water, glitter and slime.
The contestants compete in the ultimate barbecue challenge, cooking for a staggering 1200 people. The team who least impresses will find themselves cooking in the pressure test.
Every contestant is up for elimination, except the winner of the immunity challenge. The pressure mounts for all contestants to deliver delicious dishes and keep their place in the competition.
Eight teams have 15 hours to build a 'whole new world' to win not only the famous Golden Brick, giving immunity, but the Flash Jordy Brick, where they can use season one's famous Jordy as their runner to the Brick Pit. Which team do you think showed the most skill and creativity? Design your own world, label the design and list the materials needed to make your world.
The engineering behind the Singapore National Stadium, the stadium that holds the record for the largest free-spanning dome in the world, is revealed.
After impressing the judges in the round robin relay challenge, the winning team are back in the kitchen cooking for immunity and a chance to be safe from the next elimination.
Teams must cook a three-course meal in a relay-style cook. Each team member starts a course and after 20 minutes must swap to the next course. The most cohesive menu with the best dishes wins.
In this 20th anniversary special, Kevin examines just what makes a truly great Grand Designs project. In doing so, he reveals his personal top five and revisits the buildings and people that have most inspired him.
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