Plot: Tonight's episode sees the competition reach a new level as the dramatic Six Chair Challenge returns, promising some amazing performances alongside some agonising decisions for the judges, as they must each decide on the final six acts they will take through to their Judge's House. In the first of three special Six Chair Challenge episodes, the stakes are high as the acts perform individually and their judge then has to decide, there and then in front of the audience, if they want the act to take one of the six seats on stage – each one representing a place at Judges' Houses