Guy Martin presents this Channel 4 documentary in which he aims to break the fastest speed ever recorded on a Wall of Death. In his attempt to shatter the previous record of 50mph, Guy helps construct the largest Wall of Death ever built and learns about the history of the act. Aided and trained by expert rider Ken Fox, Guy builds his own custom motorbike for the attempt and learns how to cope with the intense G-forces placed on his body when riding the wall as he tries to reach in excess of 70mph.