The eight duos get their first assignment. They are immediately put to work. In fifteen hours they have to deliver a man-sized building for which they have to use all their building skills and imagination and creativity. Fortunately, they have the brick shop, where no fewer than 2.5 million bricks are waiting for them. When the top builders think they are finally ready, Kurt and Ruben come up with an 'interesting' surprise.

The candidates are facing an explosive assignment. The teams build something 'alien', and then destroy the structures without mercy and in spectacular fashion. The building that splits best in the slow-motion images wins the episode. One of the teams is already having a small eruption at the construction table.

The teams will receive not one, but two assignments today. With a lot of imagination and creativity, the seven teams have to make a half object 'whole' again. Not every team is happy with the item assigned to them by last week's winning team. In the second assignment, not an object, but the team itself is halved. A difficult job for some participants, who really need the help of their teammate.

After assignment 1, the six remaining teams will build their dream apartment with no less than three floors. The teams get 11 hours for this and not only have to use their imagination and construction talent. Their architectural insight is also called upon. One builder is quite through it. Is that going to cost the team?

The competition is getting tougher. There are still five teams in the race that are very much being tested today. The first assignment is one that the builders really dislike. And if that is not enough, they have to get all their construction skills and architectural insight for assignment 2. They have to build the strongest bridge possible. A truck must be able to drive over it! The bridge that can carry the most weight wins.

After assignment 1, in which the duos have to deliver a structure in just 10 minutes, in assignment 2 they have to show how well they can tell stories. Can they explain in their own, imaginative and creative way how the device works on Brickmaster from the inside? Last week's winners won an advantage on these assignments, but whether they take advantage of them?

In this semifinal, four teams remain. The tension is cut, the competition is killing. Traveling through time is central to the assignments. How well did the candidates pay attention to the history lessons? The team members are learning to deal better with each other's moods and mood swings, but there is still some irritation here and there.

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