Semi Final: Thames Barrier
- Episode aired 2023
The eighth season semi-final features the six heat winners and a single wild card, their task is to capture the Thames Barrier (London's main defense against flooding). From these competitor... Read allThe eighth season semi-final features the six heat winners and a single wild card, their task is to capture the Thames Barrier (London's main defense against flooding). From these competitors the judges will select the three finalists.The eighth season semi-final features the six heat winners and a single wild card, their task is to capture the Thames Barrier (London's main defense against flooding). From these competitors the judges will select the three finalists.