Celebrity Traitors veteran Joe Marler and comedian Katherine Ryan each hope to climb the money ladder and raise funds for their chosen charities. As usual there will be lifelines, including 50:50, Ask the Audience, Phone a Friend, and Ask the Host. With up to £1 million on the table, who will hold their nerve under Jeremy Clarkson's gaze and can anyone beat Stephen Fry's impressive £250,000 win?