Can Raj Bisram, Danielle Harold, John Conteh and Roger Black take on a Chaser and win thousands of pounds for their chosen charities?

Are four celebrities clever enough to take on one of the country's finest quiz brains? Bradley Walsh hosts as Jon Sopel, Maisie Summers-Newton, Perri Shakes-Drayton and Brian Conley take on the challenge, hoping to win thousands of pounds for their chosen charities.

Bradley Walsh presents as Cherry Healey, Dallas Campbell, Ria Hebden and Robert Peston pit their wits against one of the ruthless Chasers in the hope of winning a potential prize pot worth thousands of pounds. They must work as a team and play strategically to answer general knowledge questions against the clock and race down the game board to the exit without being caught.

Bradley Walsh presents as Richard Bacon, Daisy Arwen Campbell, Neil Jones and Gary Wilmot pit their wits against one of the ruthless Chasers in the hope of winning a potential prize pot worth thousands of pounds. They must work as a team and play strategically to answer general knowledge questions against the clock and race down the game board to the exit without being caught.

Bradley Walsh hosts as one Chaser is all that stands between Toby Anstis, Paula Radcliffe, Rav Wilding, Vanessa Feltz and thousands of pounds for their chosen charities.

Bradley Walsh presents as Jasmine Harman, Helen Lederer, Jamie Borthwick and Neil Delamere pit their wits against one of the ruthless Chasers in the hope of winning a potential prize pot worth thousands of pounds. They must work as a team and play strategically to answer general knowledge questions against the clock and race down the game board to the exit without being caught.

Bradley Walsh presents as Karim Zeroual, Christopher Biggins, Ellie Leach and Des Clarke pit their wits against one of the ruthless Chasers in the hope of winning a potential prize pot worth thousands of pounds. They must work as a team and play strategically to answer general knowledge questions against the clock and race down the game board to the exit without being caught.