Ant and Dec present the third audition show, as the judges - Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon - hope to uncover more of the nation's talent. Queuing up to take the stage, acts of all ages and abilities are determined to prove they are worthy of the £250,000 cash prize and a slot at this year's Royal Variety Performance, but while some of them will be deserving, others will undoubtedly hear the dreaded sound of the red buzzers just seconds into their performance