Dara O Briain and Angela Scanlon present the grand final, which features the biggest ever Robot Wars battle. One of the six places in the last round remains free, and to decide who gets it, all the contestants who came second or third in the past five episodes return to battle to the death. The winner in this Ten Robot Rumble will have to face the five episode winners through a series of group battles and knockout rounds before the final showdown to decide which machine will be crowned series champion.