Episode 1

Craig Charles hosts the first in a week of celebrity editions of the high-stakes quiz that puts mental speed to the test, with prizes on offer worth £1,000 to £100,000. The celebrities who are hoping that they'll be randomly selected are actor Catherine Tyldesley, Olympic athlete Greg Rutherford, Steps star Claire Richards, comedian and actor Nina Wadia, Celebs Go Dating's Tom Read Wilson, actor Kate Robbins, comedian Dane Baptiste, Atomic Kitten singer Natasha Hamilton, original punk wild child Toyah Wilcox and fitness legend Mr Motivator.